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Dissertations / Theses on the topic 'Software free e open source'

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Published: 11 March 2023

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1

Gozukeles, Ibrahim Izlem. "Free And Open Source Software In Turkey." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607173/index.pdf.

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In recent years, there has been growing interest of governments and firms for Free and Open Source Software (FOSS). However, FOSS is still a puzzlement for a wide spectrum of academic disciplines. Social scientists ask why FOSS hackers participate in FOSS if they do not get any monetary rewards. On the other hand firms ask, how a firm can earn money from FOSS. In this study, motivations of FOSS hackers and firms are taken as an interrelated phenomenon. For FOSS hackers, social and technical aspects of FOSS are essential. On the contrary to FOSS hackers, firms have profit oriented goals. In this context, conflicting and coinciding interests of FOSS hackers and firms are investigated through development of FOSS in Turkey. Software industry in Turkey is not developed enough and FOSS may play a prominent role in developing its own software industry. This study discusses FOSS both from the view of hackers and the firms in Turkey. In that respect, social conditions that make hackers voluntarily contribute, discrepancies between attitudes and behaviors of the firms and FOSS licenses are explored. According to these facts, possible FOSS business strategies which may be adopted in Turkey are presented.
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2

Batikas, Michail. "SME’s participation to Free Libre Open Source Software Communities." Doctoral thesis, Universitat Pompeu Fabra, 2011. http://hdl.handle.net/10803/38704.

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Les motivacions entorn al programari lliure han estat sempre un tema de gran interès, sent la pregunta més obvia, "perquè les persones treballen de forma gratuïta?". Les motivacions dels desenvolupadors han estat establertes (per exemple, von Hippel (2001), Lerner and Tirole (2002)). De la mateixa manera que ho han estat per a les empreses grans i petites que adopten programari lliure basat en models de negoci (per exemple, Lakhani and von Hippel, 2003; Fitzgerald, 2006; Krishnamurthy, 2004). No obstant això, un nombre cada vegada més elevat de les PIMES amb estratègies que no estan directament relacionades amb aquest model de negoci estan contribuint a les comunitats de programari lliure. En aquest estudi s'investiga les motivacions d'aquestes empreses des d'un punt de vista de comportament mitjançant un model d'investigació basat en TPB (Theory of Planned Behavior). Hem demostrat que factors com la "obertura" d'una PIME, la importància percebuda del programari lliure, els desenvolupadors (empleats) d'una PIME, juntament amb l'ambient extern, podrien influir en la decisió d'una PIME a participar en comunitats de programari lliure. A més, hem demostrat que es poden identificar algunes diferències entre empreses d'alta base tecnològica i empreses amb poca base tecnològica. Aquestes conclusions poden ajudar governs nacionals o regionals per millorar el disseny de polítiques per tal d'incentivar l'ús i la participació de les empreses en les comunitats de programari lliure. Especialment ara, degut a la forta crisi econòmica que pateix Europa, el programari lliure pot ser una solució adequada per a fomentar la innovació.
Motivations in FLOSS have always been a subject of great interest, by starting with the most obvious question, “why people work for free?”. The motivations of developers have been well established (eg von Hippel (2001), Lerner and Tirole 2002). The same exists also for big and small companies adopting FLOSS based Business Models (eg Lakhani and von Hippel, 2003; Fitzgerald 2006; Krishnamurthy, 2004). However an increasing number of SMEs with strategies not directly related to the Business Model are contributing to FLOSS communities. In this study we try to investigate these motivations under a behavioral perspective by using a research model based on TPB (Theory of Planned Behavior). We demonstrated that factors like the “openness” of a SME, the perceived importance of FLOSS, the developers (employees) of a SME along with the external environment of a SME, could influence the decision of a SME to participate in FLOSS communities. Also, we have demonstrated that some differences can be identified between high tech firms and non high tech firms. These findings can help national or regional governments to design better policies in order to better promote the use and the participation of firms to FLOSS communities. Especially now, in times of heavy economical crisis in Europe, FLOSS can be an adequate solution to foster innovation.
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3

Sebald, Gerd. "Offene Wissensökonomie : Analysen zur Wissenssoziologie der Free/Open Source-Softwareentwicklung /." Wiesbaden : VS Verlag für Sozialwissenschaften, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016075365&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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4

Srinivasan, Sumitra. "An Open Source Technoscape in India: Motivations, Manifestations, and Speculations." restricted, 2006. http://etd.gsu.edu/theses/available/etd-08172006-171614/.

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Thesis (Ph. D.)--Georgia State University, 2006.
Ted Friedman, committee chair; Kathy Fuller-Seeley, Ashok Jhunjhunwala, Merrill Morris, Leonard Teel, committee members. Title from title screen. Electronic text (236 p. : col. ill.) : digital, PDF file. Description based on contents viewed May 22, 2007. Includes bibliographical references (p. 189-210).
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5

Mirza, Aghaee Naghmeh. "Choosing Free/Open Source Software : The strategic reasons for using Open Office in the municipalities." Thesis, Jönköping University, JIBS, Business Informatics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-9749.

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Open source software is becoming a credible and realistic alternative to proprietary software in municipalities. The aim of this thesis is to explore the strategies and logical issues that inspire and motivate municipalities to migrate into or integrate use of open source software. The research approach used in the study is an explorative, comparative case study performed in the three Swedish municipalities of Falköping, Alingsås and Kungälv, which considers implementation and use of OpenOffice in administration. The methodologies used in the case study were in-depth interviews with Chief Information Officers in the municipalities and document analysis. The interviews were combined with the tool of SWOTanalysis to further focus on the reasons for choosing OpenOffice as an application program. There is certainly not a unique strategy to migrate into or integrate use of Free/Open Source Software. Since each municipality is autonomous in the process of decision-making, various strategic planning or guidelines are use in different municipalities. In the municipalities of Alingsås and Kungälv the strategic planning is used for leading the processes of implementation of new software applications. However, in Falköping municipality, the procedures are guided by a set of guidelines. The lower Total Cost of Ownership and the Free/Open Source Software’s freedoms besides many other advantages, make the municipalities stimulated to migrate into use of OpenOffice suite. In contrast, there are some drawbacks and barriers, such as shortage of internal and external standardization and lack of user knowledge and familiarity, which demotivate the municipalities to take this decision. To lower costs of IT administration seems to be the most significant factor in motivating municipalities to migrate into use of OpenOffice. More research is needed in order to find out the consequences of implementation of OpenOffice in municipalities as well as to investigate if Total Cost of Ownership really is decreased by the use of Open Office.

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6

Matavire, Rangarirai. "Acquired status in free and open source software user groups." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/12224.

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This study represents a seamless weaving of new and previously seemingly unrelated concepts on Free and Open Source Software (FOSS) participation into an integrated substantive framework. The research demonstrates how patterns of behaviour amongst FOSS participants serve as currency for the acquisition of status. Stages of the Basic Social Process (BSP) that lead to the resolution of the status concern are proposed. The core elements of the BSP are found to be Joining, Learning, Locating, Cultivating and Consolidating. These constructs represent the non-linear stages which the members of the community encountered in their FOSS journey towards acquiring status. The conditions for variation of the constructs are also addressed in this study.
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7

Ribeiro, Athos Coimbra. "Ranking source code static analysis warnings for continuous monitoring of free/libre/open source software repositories." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-20082018-170140/.

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While there is a wide variety of both open source and proprietary source code static analyzers available in the market, each of them usually performs better in a small set of problems, making it hard to choose one single tool to rely on when examining a program. Combining the analysis of different tools may reduce the number of false negatives, but yields a corresponding increase in the number of false positives (which is already high for many tools). An interesting solution, then, is to filter these results to identify the issues least likely to be false positives. This work presents kiskadee, a system to support the usage of static analysis during software development by providing carefully ranked static analysis reports. First, it runs multiple static analyzers on the source code. Then, using a classification model, the potential bugs detected by the static analyzers are ranked based on their importance, with critical flaws ranked first, and potential false positives ranked last. To train kiskadee\'s classification model, we post-analyze the reports generated by three tools on synthetic test cases provided by the US National Institute of Standards and Technology. To make our technique as general as possible, we limit our data to the reports themselves, excluding other information such as change histories or code metrics. The features extracted from these reports are used to train a set of decision trees using AdaBoost to create a stronger classifier, achieving 0.8 classification accuracy (the combined false positive rate from the used tools was 0.61). Finally, we use this classifier to rank static analyzer alarms based on the probability of a given alarm being an actual bug. Our experimental results show that, on average, when inspecting warnings ranked by kiskadee, one hits 5.2 times less false positives before each bug than when using a randomly sorted warning list.
Embora exista grande variedade de analisadores estáticos de código-fonte disponíveis no mercado, tanto com licenças proprietárias, quanto com licenças livres, cada uma dessas ferramentas mostra melhor desempenho em um pequeno conjunto de problemas distinto, dificultando a escolha de uma única ferramenta de análise estática para analisar um programa. A combinação das análises de diferentes ferramentas pode reduzir o número de falsos negativos, mas gera um aumento no número de falsos positivos (que já é alto para muitas dessas ferramentas). Uma solução interessante é filtrar esses resultados para identificar os problemas com menores probabilidades de serem falsos positivos. Este trabalho apresenta kiskadee, um sistema para promover o uso da análise estática de código fonte durante o ciclo de desenvolvimento de software provendo relatórios de análise estática ranqueados. Primeiramente, kiskadee roda diversos analisadores estáticos no código-fonte. Em seguida, utilizando um modelo de classificação, os potenciais bugs detectados pelos analisadores estáticos são ranqueados conforme sua importância, onde defeitos críticos são colocados no topo de uma lista, e potenciais falsos positivos, ao fim da mesma lista. Para treinar o modelo de classificação do kiskadee, realizamos uma pós-análise nos relatórios gerados por três analisadores estáticos ao analisarem casos de teste sintéticos disponibilizados pelo National Institute of Standards and Technology (NIST) dos Estados Unidos. Para tornar a técnica apresentada o mais genérica possível, limitamos nossos dados às informações contidas nos relatórios de análise estática das três ferramentas, não utilizando outras informações, como históricos de mudança ou métricas extraídas do código-fonte dos programas inspecionados. As características extraídas desses relatórios foram utilizadas para treinar um conjunto de árvores de decisão utilizando o algoritmo AdaBoost para gerar um classificador mais forte, atingindo uma acurácia de classificação de 0,8 (a taxa de falsos positivos das ferramentas utilizadas foi de 0,61, quando combinadas). Finalmente, utilizamos esse classificador para ranquear os alarmes dos analisadores estáticos nos baseando na probabilidade de um dado alarme ser de fato um bug no código-fonte. Resultados experimentais mostram que, em média, quando inspecionando alarmes ranqueados pelo kiskadee, encontram-se 5,2 vezes menos falsos positivos antes de se encontrar cada bug quando a mesma inspeção é realizada para uma lista ordenada de forma aleatória.
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8

Krieger, Bernhard Ludwig. "The production of free software : an ethnographic enquiry into a new social practise." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608965.

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9

Garrigós, Janina, and Pau Minoves. "Adopting Free/Libre/Open Source Software Practices, Techniques and Methods for Industrial Use." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4184.

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Today’s software companies face the challenges of highly distributed development projects and constant changing requirements. To be competitive, the software time to market has to be reduced as much as possible while keeping the expected quality. Development methodologies try to address this challenges by introducing new practices, techniques and methods for communication, requirements management, quality assurance, etc. This thesis proposes the adoption of relevant Free/Libre/Open Source Software practices to improve industrial developments. Many FLOSS projects have proven very successful, producing high quality products with steady frequent releases. The selection of the FLOSS best practices that would benefit industrial developments, and its adaptation for a corporate environment is the aim of this study. To achieve this goal, a framework to compare FLOSS and industrial development methodologies has been created and executed. Three successful FLOSS projects where selected as study targets, as well as two Ericsson’s projects. The framework served to identify FLOSS methodology strengths and compare them with the Ericsson projects. Analysing the significant differences resulting from this comparison, FLOSS best practices were tailored to fit industrial development environments. The final results of the thesis are six adoption opportunities that aim to improve software quality and overall development productivity while increasing practitioners’ motivation and commitment.
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10

Meyer, Silke [Verfasser]. ""Free Software, Free Society"? : Über die Reproduktion von Differenz in der Praxis von Free/Libre Open Source Software-Communities / Silke Meyer." Berlin : Freie Universität Berlin, 2013. http://d-nb.info/1045194999/34.

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11

Schofield, Andrew John. "Knowledge and resource sharing in free and open source software community environments." Thesis, University of Salford, 2010. http://usir.salford.ac.uk/26898/.

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This thesis describes a research study which investigated on-line communities based around Free and Open Source Software (FOSS) support and development. Specifically, the study examined how knowledge and resources are shared within these communities. Emphasis was placed on the issues of organisation and governance of these communities, collaboration, and the motivation of the participants involved. The research was carried out from an interpretive philosophical perspective and was therefore exploratory in nature, focusing on the perspectives of FOSS community participants. Following an in-depth literature review on the topics of FOSS and Knowledge Management, a multi-method approach was employed using three data collection techniques; an on-line questionnaire targeting participants in FOSS interest groups and communities, interviews with community participants and observation of two FOSS communities. The results of the research have revealed interesting findings relating to the social, managerial and technological mechanisms which facilitate knowledge transfer and creation in FOSS communities, and the important role that leadership styles, participant motivations, organisational structures and cultures, degrees of formality, relationships between participants and the use of information technology have to play in the success or failure of FOSS projects and communities. The research has shown that extremely strict or relaxed forms of leadership are likely to cause problems in a project and community, that a wide array of motivational factors drive participants, that many and varied forms of organisational structure and cultures exist, often influenced by leadership styles, that levels of formality in a community can have significant effects on knowledge sharing and collaboration, that social interaction acts as a foundation for FOSS activities but has little significance beyond that, and that to a certain extent, disagreements and arguments between participants and even project forking can be beneficial to a FOSS project and community. A generic finding was that FOSS communities vary considerably, based on the factors described above. This research therefore goes some way towards creating a generic model of FOSS communities and projects and specifies a number of 'recipes' for project and/or community success.
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12

Rentocchini, Francesco <1978&gt. "Intellectual property rights in the software sector: issues on patents and free/libre open source software." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/501/1/TesiFrancescoRentocchini.pdf.

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Rentocchini, Francesco <1978&gt. "Intellectual property rights in the software sector: issues on patents and free/libre open source software." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/501/.

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14

Berry, David M. "The contestation of code : a political economy of free software and open source." Thesis, University of Sussex, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441037.

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15

Ratto, Matt. "The pressure of openness : the hybrid work of linux free/open source kernel developers /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2003. http://wwwlib.umi.com/cr/ucsd/fullcit?p3089478.

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16

Holý, Michal. "Analýza trendů IS z pohledu uplatnění nových technologií s orientací na open source." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-194035.

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The theme of this thesis is to analyze current technological trends with a focus on open source software in terms of relevance and importance for enterprises. The main objective is to evaluate the current status of open source software for Czech enterprises and characterize the progress based on data from 2010 and 2015. The thesis describes the basic forms of software used by companies which are further categorized based on the functionality and usability. The specifics of open source software and its licenses are defined. Subsequently the selection of specific open source licenses, generally perceived views on their use and the status of open source software in various stages of its existence are described. Analytical part describes the results of the author's survey in Czech enterprises in terms of open source software application for 2015. The results are compared with data from 2010 and appropriate conclusions are defined. Finally, the hypotheses are connected with the results of the author's survey, data comparison, available open source methodologies and other sources for an overall assessment of the situation in the Czech Republic.
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Sabino, Vanessa Cristina. "Um estudo sistemático de licenças de software livre." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-14032012-003454/.

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Esta dissertação tem por objetivo apresentar as licenças de software livre mais importantes, sob a luz dos seus principais aspectos jurídicos e da inter-compatibilidade, de forma a auxiliar pessoas envolvidas no desenvolvimento de software a compreender as implicações destas licenças ao fazer uso delas em seus projetos. A dissertação contextualiza as licenças, tanto no tocante à legislação brasileira, quanto no que diz respeito às restrições de licenciamento, de forma a viabilizar a análise de compatibilidade que se segue. Casos de projetos proeminentes de software livre cujo desenvolvimento foi afetado pelas implicações mencionadas ilustram a investigação, que é complementada por uma análise de ferramentas e metodologias existentes que auxiliam na gestão dos aspectos de licenciamento.
The purpose of this Master thesis is to present the most common free software licenses, regarding their main legal and inter-compatibility aspects, to help people involved in software development understand the implications of these licenses when using them in their projects. It contextualizes the licenses, both in terms of the Brazilian legislation, and regarding licensing restrictions, to make the subsequent compatibility analysis possible. Cases of free and open source software in which development was affected by the mentioned implications illustrate the research, and it is complemented by an analysis of existing tools and methodologies that assist in the management of licensing issues.
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Sanga, Camilius. "A technique for the evaluation of free and open source e-learning systems." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6242_1306494254.

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Evaluating software is a universal and complex problem. The question is: how should software be selected and adopted, or rather, which of the software packages is the most suitable for a specific environment? Extensive research on the evaluation of software has been done, but only a few researchers have considered evaluation of e-learning systems based on three software quality characteristics (i.e. usability, maintainability and deployability) for implementation in third world countries. In this thesis, it will be considered how to use a mixed research methods for the evaluation of free and open source e-learning systems in a developing country. The scope of this investigation is the evaluation of two free and open source e-learning systems at the Open University of Tanzania using 33 stakeholders (some with more and others with less computer expertise).

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19

Ozaygen, Altay S. "Diffusion Of Free And Open Source Software As Innovation: A Case Study Of Metu." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605716/index.pdf.

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In this thesis, the diffusion of free and open source software (FOSS) on desktop PCs at Middle East Technical University in Ankara (METU) is investigated within the framework of the diffusion of innovation theory. This thesis aims to propose some policies for the migration to FOSS on desktop PCs at METU. The research is conducted through two similar web-based surveys. The first survey was held during 27-28 September 2003 after the examination of exemption for the IS100 course. The second survey was held between 23 March and 24 May 2004 in the whole of the METU campus. This survey was open to all students and academic and non-academic staff with a METU network account. There were 402 participants in the first survey and 1224 in the second. As expected, Microsoft OS rules the desktop PCs within the METU campus. According to the surveys, there is a rather large PC user base which could potentially migrate to GNU/Linux system. In addition to a large amount of data, it has been found out that a migration to FOSS is welcomed greatly by the users if the process is explained on the basis of public economic gains. However personal migration is still difficult if the user is left alone to install any new OS. Activities which will eventually increase the awareness for FOSS at METU, change in the curriculum of the IS100 course, collaboration among METU FOSS users and creation of a software catalog with possible FOSS equivalent for METU courses are some of the propositions which will eventually help the migration process. Furthermore, different innovation-decision models are discussed based on the research findings.
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Mandel, Alexander. "Expanding Geography with Free and Open Source Software| Technology Diffusion, Cartography, and Data Analysis." Thesis, University of California, Davis, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3646340.

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This dissertation lies at the intersection of two current trends in technology, both of which are increasing with the spread of high speed internet: location-based services (geospatial technologies) and Free and Open Source Software (FOSS). Chapter one explores the nature of geospatial technology knowledge diffusion by investigating the spread of OSGeo-Live, a collection of pre-existing geospatial FOSS packaged specifically for demonstration and education purposes. The analysis examines the distribution of downloaders, contributors and translators then assesses the potential barriers to knowledge diffusion including economic, technical and socio-cultural factors. Chapter two describes a new online tool built with FOSS designed to bring traditional cartographic knowledge to a new medium, the internet, and a new audience, web developers and other non-traditional internet-based cartographers. The tool allows users to compare several base map options simultaneously, providing guidance on how to assess the appropriateness of a base map for a particular map composition. Chapter three uses geospatial FOSS software to conduct verification of a habitat fragmentation model with GPS tracking data. By demonstrating a common type of analysis for natural resource scientists, the methods provide an example for traditional types of geospatial analysis emphasizing repeatability, shareability, and usability by field science practitioners not just geospatial specialists. These studies represent an initial foray into understanding geospatial technology diffusion and modern geospatial technologies, specifically with geospatial free and open source software.

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Özaygen, Altay Ş Supervisor :. Geray Haluk. "Diffusion of free and open source software as innovation : a case study of Metu." Ankara : METU, 2004. http://etd.lib.metu.edu.tr/upload/12605716/index.pdf.

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Veselý, Jakub. "Analýza a návrh Open Source řešení pro Městský úřad Blansko." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-264870.

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The object of this mater’s thesis is to analyze current situation of information system at municipal office of Blansko and to review it. Subsequently to suggest other possible solutions and improvements. Formulation of economic and other advantages and possible disadvantages and problems that can occur in case of implementation of other OpenSource components.
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Zeini, Sam, Nils Malzahn, and H. Ulrich Hoppe. "Entstehung von Innovationen in Open-Source-Netzwerken am Beispiel von Open Simulator." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-141898.

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Zeini, Sam, Nils Malzahn, and H. Ulrich Hoppe. "Entstehung von Innovationen in Open-Source-Netzwerken am Beispiel von Open Simulator." Technische Universität Dresden, 2009. https://tud.qucosa.de/id/qucosa%3A27996.

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Linder, Anders, and Johan Olsson. "Free Software For Web Development." Thesis, Linköping University, Department of Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2000.

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This thesis will look into what kind of solutions a company or a private person can use if they want to create a dynamic website using only free software. To do this we divided our work in two parts. In the first part, we developed a dynamic website for a Swedish company. On the server side we used exclusively free software with open source code. There are different meanings in how the term “free” should be used when referring to software, which we will explain in the thesis. We have also chosen to work with the XMLtechnology to see if it lives up to its expectations and to see if we could benefit from the technology. Alongside with the development of our site, another company developed a site for the same company as us, by using non-free software. We have described both implementations and compared them to see if it is possible to do the same thing with both free and non-free software.

The investigating part of our work consisted of getting information about what other people think about the free software phenomenon. To do so we created an online questionnaire where we randomly picked 100 Swedish web agencies and asked them to answer 8 questions about what kind of software they used in their company, and what they thought about free software. To get some more opinions we also interviewed two persons involved in these kinds of topics. Jan Sandred, who is a well known expert advisor in topics concerning the Information Technology area and Richard Stallman, the founder of GNU and the Free Software Movement.

The reason for dividing the thesis in two parts was to get an overall picture on the subject. We did not only want to base our results on other people’s thoughts. We wanted to make our own conclusions based on the implementation we did. This approach showed out to be very good. We got to try working with free software ourselves to see its pros and cons and build our own opinions about it. We could then proceed to compare our impressions to other people’s impressions about free software.

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Alexandris, Nikos [Verfasser], and Steffen [Akademischer Betreuer] Kuntz. "Burned area mapping via non-centered PCA using Public Domain Data and Free Open Source Software = Kartierung abgebrannter Flächen durch nicht-zentrierte Hauptkomponentenanalyse bei Benutzung von Public Domain Dateien und Free Open Source Software." Freiburg : Universität, 2011. http://d-nb.info/1123465053/34.

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Hadziselimovic, Adnan. "FLOSSTV (Free, Libre, Open Source Software (FLOSS)) within participatory 'TV hacking' media and arts practices." Thesis, Goldsmiths College (University of London), 2012. http://research.gold.ac.uk/6922/.

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This research operates in the context of a European political discourse, where the main concern is counter-cultural approaches to non-mandatory collaboration and contractual agreements. FLOSSTV (Free, Libre, Open Source Software TV) covers a broad range of practices, from television via documentary up to media arts productions. This thesis documents the endeavour to formulate a policy for FLOSS culture. FLOSSTV studies the impact of new intellectual property legislation on media production, as well as conceptions and applications of collective authorship and alternative licensing schemes. FLOSSTV sets out to explore methods that can facilitate media and arts practitioners wishing to engage in collaborative media productions. The thesis sets out to investigate the theories and histories of collaborative media and arts productions in order to set the ground for an exploration of the tools, technologies and aesthetics of such collaborations. The FLOSSTV thesis proposes a set of contracts and policies that allow for such collaborations to develop. It is through practice that this research explores FLOSS culture, including its methods, licensing schemes and technologies. In order to focus the research within the field of FLOSSTV I initiated the practice-based Deptford.TV pilot project as the central research experiment for the FLOSSTV thesis. DVD ONE contains a series of films produced collaboratively for Deptford.TV that express the characteristics and contractual arrangements of FLOSS culture. Deptford.TV is an online audiovisual database primarily collecting media assets around the Deptford area, in South­East London, UK. Deptford.TV functions as an open, collaborative platform that allows artists, film-makers, researchers and participants of the local workshops in and around Deptford, and also beyond Deptford, to store, share, re-edit and redistribute their footage and projects. The open and collaborative nature of the Deptford.TV project demonstrates a form of shared media practice in two ways: audiences become producers by submitting their own footage, and the database enables the contributors to interact with each other. Through my practice-lead research project Deptford.TV I argue that, by supporting collaborative methods and practices, FLOSS (Free, Libre, Open Source Software) can empower media and arts practitioners to collaborate in production and distribution processes of media and arts practices.
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Day, Allan. "An ethnographic study of FLOSS : towards an STS analysis of free/open source software production." Thesis, Goldsmiths College (University of London), 2011. http://research.gold.ac.uk/7325/.

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The thesis argues that, contrary to previous analyses of the topic, Free/Libre Open Source Software (FLOSS) must be understood as an assemblage of interconnected software projects, rather than being a singular entity. It also argues that a detailed understanding of these projects' production activities is necessary in order to gain an adequate understanding of the wider FLOSS phenomenon. In order to address these omissions in existing treatments of the topic, the thesis presents the results of a detailed, long-term, ethnographic study of a FLOSS project, the analysis of which is informed by actor-network and assemblage theory. In doing so, the material components of GNOME are a major focus, including the project's code, its communications and development infrastructure, and the role of contributors' bodies in their production activities. These aspects of the project are shown to be subject to various territorialising activities which seek to establish it and its products as having particular characteristics, and which also generate the project as a definite, delineated entity. These shared material aspects of the project are also argued to be crucial to participants' abilities to associate and collaborate with one another, and are shown to be subject to normative prescriptions and political contests. The thesis makes the case that the study of FLOSS is able to inform a more general sociological understanding of the consequences and possibilities associated with digital technologies and goods.
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Dysart, Thomas. "Systems within systems : free and open source software licences under German and United States law." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:4632118c-1ef6-47b9-ac89-2b3c7889f881.

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Free and Open Source Software (FOSS) licences channel the exclusionary and individualising force of copyright to establish a qualitatively different, somewhat subversive, system for the exploitation of software. This thesis examines how it is that FOSS licences establish this 'system within a system' under both German and United States law. The inquiry begins with a detailed examination of FOSS licence templates as the instruments which transform code from its default position as the 'res' of proprietary relations to its status as 'open' or 'free'. The thesis then considers whether FOSS licence templates, as the legal basis for this subversive move, are valid and enforceable under domestic law. In addressing this question, the thesis undertakes a critical analysis of the leading case law in each jurisdiction. Going beyond the immediate case law, the thesis considers the broader systemic effects of FOSS licence enforcement. It highlights how building a system within a system foments certain tensions and contradictions within the law, in turn giving rise to unintended consequences and legal uncertainty. By highlighting these tensions, the thesis argues that the questions of FOSS licence enforcement in Germany and the United States may not be as settled as some may think.
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Berdou, Evangelia. "Managing the bazaar : commercialization and peripheral participation in mature, community-led free/open source software projects." Thesis, London School of Economics and Political Science (University of London), 2007. http://etheses.lse.ac.uk/116/.

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The thesis investigates two fundamental dynamics of participation and collaboration in mature, community-led Free/Open Source (F/OS) software projects - commercialization and peripheral participation. The aim of the thesis is to examine whether the power relations that underlie the F/OS model of development are indicative of a new form of power relations supported by ICTs. Theoretically, the thesis is located within the Communities of Practice (CoP) literature and it draws upon Michel Foucault's ideas about the historical and relational character of power. It also mobilizes, to a lesser extent, Erving Goffman's notion of `face-work'. This framework supports a methodology that questions the rationality of how F/OS is organized and examines the relations between employed coders and volunteers, experienced and inexperienced coders, and programmers and nonprogrammers. The thesis examines discursive and structural dimensions of collaboration and employs quantitative and qualitative methods. Structural characteristics are considered in the light of arguments about embeddedness. The thesis contributes insights into how the gift economy is embedded in the exchange economy and the role of peripheral contributors. The analysis indicates that community-integrated paid developers have a key role in project development, maintaining the infrastructure aspects of the code base. The analysis suggests that programming and non-programming contributors are distinct in their make-up, priorities and rhythms of participation, and that learning plays an important role in controlling access. The results show that volunteers are important drivers of peripheral activities, such as translation and documentation. The term `autonomous peripherality' is used to capture the unique characteristics of these activities. These findings support the argument that centrality and peripherality are associated with the division of labour, which, in turn, is associated with employment relations and frameworks of institutional support. The thesis shows how the tensions produced by commercialization and peripheral participation are interwoven with values of meritocracy, ritual and strategic enactment of the idea of community as well as with tools and techniques developed to address the emergence of a set of problems specific to management and governance. These are characterized as `technologies of communities'. It is argued that the emerging topology of F/OS participation, seen as a `relational meshwork', is indicative of a redefinition of the relationship between sociality and economic production within mature, community-led F/OS projects.
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Michlmayr, Martin. "Quality improvement in volunteer free and open source software projects : exploring the impact of release management." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613166.

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32

Birkinbine, Benjamin. "Incorporating the Commons: A Political Economic Analysis of Corporate Involvement in Free and Open Source Software." Thesis, University of Oregon, 2014. http://hdl.handle.net/1794/18513.

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Free (libre) and open source software (FLOSS) emerged in the 1980s as a radical alternative to proprietary software. Fighting back against what FLOSS enthusiasts viewed as overly restrictive intellectual property protections placed on proprietary software, FLOSS was designed with the intent of granting users the right to study, modify, adapt, or otherwise tinker with the source code of software. As such, FLOSS users were able to collaborate in producing software that could be distributed freely and widely to others, who could, in turn, make changes to the software. As FLOSS projects grew in popularity, the productive process was spread throughout a broad network of distributed users, all of whom could work on the code. The result of this process was the creation of robust, effective, and efficient forms of software that could compete with those offered by large software companies. Increasingly, however, some of those large software companies became involved in the development of FLOSS projects. On its face, this may seem to be a contradiction of interests. Why would a for-profit company invest in the development of software that is made freely available for others to use? This is the contradiction that lies at the heart of this research project. More specifically, this project looks at the dynamics that exist between communities of FLOSS developers and the corporations that are involved in or make use of their projects. Working from a critical political economy perspective, this study complicates theories of the commons and commons-based peer production by illustrating how FLOSS processes and products are being incorporated into broader corporate structures and strategies. The three case studies presented - Red Hat, Microsoft, and Oracle's acquisition of Sun Microsystems - exemplify different elements of this dynamic. Red Hat provides an example of how a company that relies exclusively on free software can be turned into a profitable business. The Microsoft case demonstrates why the company has undergone a transition from vehement opposition to FLOSS toward a more supportive position. Finally, Oracle's acquisition of Sun Microsystems demonstrates how FLOSS communities cope with changing ownership structures and unwanted corporate interference into their projects.
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Vestbø, Tor Arne. "Software Quality in the Trenches : Two Case Studies of Quality Assurance Practices in Free/Libre and Open Source Software (FLOSS)." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9659.

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When proponents of open source software are asked to explain the success of their movement they typically point to the quality of the software produced, which is in turn attributed to the rather unconventional development model of releasing unfinished versions of the software and having users look over the code and report and fix bugs. This thesis investigates the open source quality assurance model from a knowledge management perspective – based on the assumption that debugging involves a high degree of knowledge work. By doing interpretive case studies of two open source projects – using direct observation, e-mail archives, and bug-trackers as data sources – I present descriptive accounts of the day to day quality practices in open source development. The analysis shows that conceptualizing and classifying bugs is a complex process involving sense-making and subjective considerations; that the peer-review process in open source projects has a lot in common with traditional field-testing; and that communication tools and mediums are used interchangeably, but with certain preferences depending on subject matter. I conclude that perhaps the success of the open source development model is not due to its novelty compared to traditional software engineering, but because open source developers have recognized that debugging is a knowledge-intensive process. Keywords: Open Source, Software Quality, Knowledge Management

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DIAS, FILHO Luiz Fernando. "A utilização de Open Source GIS na mineração: prospecção regional de Pegmatitos da Faixa Seridó Paraibana." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18057.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-12-01T13:41:47Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Luiz Fernando - UFPE - Engenharia Mineral - PDF.pdf: 9775621 bytes, checksum: aa76e1a8e8ad5b8d8e0a6568b4a889ca (MD5)
Made available in DSpace on 2016-12-01T13:41:47Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Luiz Fernando - UFPE - Engenharia Mineral - PDF.pdf: 9775621 bytes, checksum: aa76e1a8e8ad5b8d8e0a6568b4a889ca (MD5) Previous issue date: 2016-02-29
A fase inicial de um empreendimento mineiro demanda um forte investimento com retorno bastante incerto, pois é necessária a aquisição de dados para localizar, delimitar e estimar os volumes das reservas minerais de interesse. Visando reduzir estes custos e diminuir as incertezas características de uma fase em que se tem pouca informação, esta pesquisa propõe o uso de Open Source GIS, também conhecidos como Sistemas de Informações Geográfica de Código Aberto, combinado com a aquisição de dados geoespaciais gratuitos de fontes públicas e oficiais, para posterior processamento e refinamento de informações. Para a composição deste trabalho foi realizada aquisição de dados públicos disponíveis sobre a região dos corpos Pegmatitos da Fazenda Primavera, localizada na Província Pegmatítica da Borborema, no município de Tenório, Paraíba. Os dados foram utilizados para a produção e refinamento de informações como a delimitação e localização dos corpos, realização de estudos geomorfológicos, logísticos e estimação de volumes. Os processamentos das imagens e dados, além da confecção de mapas, e análises tridimensionais dos afloramentos foram executados em um único programa, o software livre Quantum GIS. Os produtos gerados permitiram concluir que é possível extrair e produzir informação de elevada qualidade a partir de dados disponíveis de forma gratuita, utilizando softwares oficiais, reduzindo os custos iniciais de um projeto de mineração, podendo continuar a ser utilizados nas fases posteriores, caso o empreendimento mineral se prove viável.
The initial phase of a mining project requires a strong investment with a very uncertain feedback because it is necessary the data acquisition to locate, define and estimate the volumes of mineral reserves of interest. In order to reduce these costs and reduce the characteristic uncertainties of a stage where there is little information, this research proposes the use of Open Source GIS (Geographic Information Systems), combined with the acquisition of free geospatial data from public and official sources for further processing and refinement of information. For the composition of this research it has been carried out the acquisition of public available information about the region of pegmatites bodies at the “Fazenda Primavera”, located at the Borborema Pegmatitic Province, Tenório county, Paraíba. The data have been used for the production and processing of information as the delimitation and location of pegmatites, realization of geomorphological and logistic studies, and estimation of volumes. The processing of the images and data besides maps making and threedimensional analyzing of outcrops were executed in a single program, the free Quantum GIS software. The created products allowed the conclusion that it is possible to extract and produce high-quality information from free available data, using official software, reducing the initial costs of a mining project, which may continue to be used in later phases if the mineral project proves to be feasible.
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35

Pentzold, Christian. "Was haben Viehweiden mit Software zu tun? Informationstechnologien und die Allmende." Universitätsbibliothek Chemnitz, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-201000657.

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36

Haskel, Lisa Frances. "Participatory design and free and open source software in the not for profit sector : the Hublink Project." Thesis, Bournemouth University, 2017. http://eprints.bournemouth.ac.uk/29569/.

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This industry-based thesis undertakes a multifaceted and longitudinal exploration of the design and implementation of a Free and Open Source Software (FLOSS) based information system in a consortium of small-scale community organisations. The research is centred on the design, production and implementation of a case management system with and for a group of nine not-for-profit organisations in the London Borough of Tower Hamlets who work as a consortium. The system, called Hublink, is based on the FLOSS framework Drupal. The system was designed during 2013 and has been in everyday use by those organisations since January 2014, acting as the consortium's primary information infrastructure. This research therefore encompasses both design and use. The design process was based on Participatory Design (PD) principles and methods. Because of the project's long-term nature, Hublink has been an exceptional opportunity to focus on the legacy of a PD process into the later stages of the software development life-cycle. This research has therefore been able to draw on themes that have emerged through real-world use and an extended collaboration and engagement. In this thesis I place the Hublink project description within literature covering Participatory Design, Community Informatics and Free/Libre and Open Source Software (FLOSS), extending into infrastructuring, appropriation and end user development. Through a literature review and presentation of evidence collected during this research project, a clear argument emerges that relates the mutual learning outcomes of Participatory Design, with sustainability through infrastructuring activities, while also showing how the communities of practice of FLOSS projects create an infrastructure for not-for-profit organisations, enabling them to build sustainable systems that can meet their needs and accord with their values. The thesis argues that while Participatory Design strengthens the human element of infrastructure, FLOSS provides a complementary element of technical support, via the characteristics of generativity and extensibility, and their communities of practice. This research provides a deeply descriptive study that bridges design and use, centred on the core values of Participatory Design, contributing to the understanding and development of practices around sustainability and Participatory Design in the not-for- profit sector. The research offers a conceptual pathway to link FLOSS and Participatory Design, suggesting directions for future research and practice that enhance the connections between these two important areas of participatory production.
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Lin, Yuwei. "Hacking practices and software development : a social worlds annalysis of ICT innovation and the role of free/libre open source software." Thesis, University of York, 2004. http://etheses.whiterose.ac.uk/9881/.

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Through use of social worlds theory and qualitative research methods, this thesis explores hackers’ practices and their relationships with the computing world and the wider society from a socio-technical perspective. The hacker social world comprises actors from diverse social-technical backgrounds who share a constellation of im/material practices, namely open source practices (OSPs). Through engaging with these collective practices, actors and actants communicate, negotiate, and shape each other’s identities, practices and understandings of the innovation structure and system in various aspects. In examining the diverse articulations and performances in which hacker culture and hacker identity are both reflected and constructed, the thesis tries to contextualise and deconstruct the ICT architecture we take for granted, as well as the innovations made possible by this architecture. The major findings of my research are: 1) As a community of open source practices, the FLOSS social world allows diverse actors to engage in the innovation process and therefore fosters a greater innovation resources than other relatively conventional software engineering models. 2) The strategic collaboration between the public (i.e. the free software community) and the private (i.e. information technologies corporations) sectors symbolises a pattern of hybrid innovation that entails complex communications and networks, though stabilizing these can be problematic. 3) Tacit knowledge anchored in everyday experiences is particularly valued in a community-based innovation system where social networking and information sharing are extensive. 4) The development of FLOSS democratises software innovation process and allows lay people to develop their understanding and knowledge of a shared problem/issue, especially through the web, to challenge established views on the issue.
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Rocha, Lucas Almeida. "Software livre e produção colaborativa na Internet: um estudo de caso dos instrumentos de comunicação do Projeto Gnome." Programa de Pós-Graduação em Comunicação e Cultura Contemporâneas da UFBA, 2007. http://www.repositorio.ufba.br/ri/handle/ri/11308.

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Made available in DSpace on 2013-05-24T14:46:56Z (GMT). No. of bitstreams: 1 dissertacao Lucas Rocha.pdf: 1592382 bytes, checksum: 7bed9812a0dd368e8ab702d7d2c9d32a (MD5) Previous issue date: 2007
Nosso tempo tem sido marcado por profundas transformações de ordem paradigmática resultantes de uma séria de reconfigurações nos planos social, cultural e tecnológico. Da relação simbiótica entre a sociedade informacional e pós-moderna, a cultura e as novas tecnologias de informação e comunicação emerge uma nova forma sócio-cultural denominada Cibercultura Nesse contexto, com base em experiências bem sucedidas das comunidades desenvolvimento de software livre, assistimos o surgimento de diversas iniciativas no ciberespaço com o objetivo de colaborar em torno da produção de bens culturais e informacionais de interesse comum. Os projetos de software livre e outras iniciativas surgidas no ciberespaço são exemplos da emergência de uma nova forma de produção em rede baseada em colaboração em larga escala movida por indivíduos auto-motivados. Esta pesquisa visa investigar de que forma essa produção colaborativa ocorre na comunidade de desenvolvimento do projeto GNOME. O GNOME é um projeto de software livre que visa desenvolver um ambiente desktop para GNU/ Linux e outros sistemas similares ao Unix, e uma plataforma de desenvolvimento para a criação de novos aplicativos para o desktop. O projeto GNOME possui uma comunidade de aproximadamente 500 contribuidores de diversas nacionalidades que colaboram através da Internet no desenvolvimento de módulos de softwares de alta complexidade. Mais especificamente, buscaremos realizar um estudo sobre a relação entre tecnologias de comunicação e ações coletivas e colaborativas no ciberespaço; identificar quais instrumentos de comunicação eletrônica são utilizados no GNOME e como estes instrumentos são utilizados na colaboração entre os seus participantes.
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Falcioni, Chiara. "Installazione, configurazione ed utilizzo di Waiwera: un free software open-source per simulazioni di geotermia ad alta entalpia." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24510/.

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La riduzione degli impatti dovuti al cambiamento climatico mediante una decarbonizzazione del settore energetico passa inevitabilmente attraverso ad una Transizione Energetica che si orienta sempre più all’utilizzo di fonti energetiche rinnovabili. In tale sfida la produzione energetica attraverso fonti geotermiche può giocare un ruolo importante. A rigore la geotermia non è una fonte di energia rinnovabile, diventa tale se correttamente coltivata, ossia utilizzata con piani di sfruttamento sostenibili nel lungo periodo. Per tale motivo l’attività di modellazione numerica diventa un fattore chiave nella coltivazione dell’energia geotermica. Il gruppo geotermico dell’Università di Auckland ha sviluppato un nuovo simulatore di flusso geotermico ad alta entalpia con la capacità di gestire i cambi di fase, chiamato ''Waiwera''. In tale ambito, Waiwera è probabilmente il primo ad offrire le funzionalità e le prestazioni richieste per modelli di serbatoi geotermici grandi e complessi ed essere rilasciato open source e gratuitamente. Waiwera è stato pensato e realizzato con moderne tecniche di programmazione object-oriented per lavorare in modalità parallela su computer condivisi e cluster, con la possibilità di operare su diversi sistemi operativi. Questa versatilità si traduce però in una complessità iniziale di messa in funzione del software specialmente sotto Windows. Nel presente lavoro di tesi Waiwera è stato installato, configurato e testato con un caso studio di letteratura, su di un server equipaggiato con Windows 10. I risultati di tale attività sono stati pienamente all’altezza delle aspettative, ottenendo un server per simulazioni geotermiche ad alta entalpia perfettamente funzionante e performante. Inoltre, come primo passo verso un confronto delle prestazioni di Waiwera con altri simulatori, è stata effettuata una simulazione del caso studio in esame con il codice TOUGH2-EWASG, ottenendo risultati in linea con quelli di Waiwera.
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Steinmacher, Igor Fábio. "Supporting newcomers to overcome the barriers to contribute to open source software projects." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-30112015-131552/.

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Community-based Open Source Software (OSS) projects are generally self-organized and dynamic, receiving contributions from volunteers spread across the globe. These communities survival, long-term success, and continuity demand a constant influx of newcomers. However, newcomers face many barriers when making their first contribution to an OSS project, leading in many cases to dropouts. Therefore, a major challenge for OSS projects is to provide ways to support newcomers during their first contribution. In this thesis, our goal was to identify and understand the barriers newcomers face and provide appropriate strategies to lower these barriers. Toward this end, we conducted multiple studies, using multiple research methods. To identify the barriers, we used data collected from: semi-structured interviews with 35 developers from 13 different projects; 24 answers to an open questionnaire conducted with OSS developers; feedback from 9 graduate and undergraduate students after they tried to join OSS projects; and 20 primary studies gathered via a systematic literature review. The data was analyzed using Grounded Theory procedures: namely, open and axial coding. Subsequently, the analysis resulted in a preliminary conceptual model composed of 58 barriers grouped into six categories: cultural differences, newcomers characteristics, reception issues, newcomers orientation, technical hurdles, and documentation problems. Based on the conceptual model, we developed FLOSScoach, a portal to support newcomers making their first OSS project contribution. To assess the portal, we conducted a study with undergraduate students, relying on qualitative data from diaries, self-efficacy questionnaires, and the Technology Acceptance Model. By applying the model to a practical application and assessing it, we could evaluate and improve the barriers model, changing it according to improvements identified during the conception of the tool, as well as suggestions received from the study participants. The FLOSScoach study results indicate that the portal played an important role guiding newcomers and lowering barriers related to the orientation and contribution process, whereas it was inefficient in lowering technical barriers. We also found that the portal is useful, easy to use, and increased newcomers confidence to contribute. The main contributions of this thesis are: (i) empirical identification and modeling of barriers faced by OSS project newcomers; and (ii) a portal providing information to support OSS project newcomers.
Projetos de software livre baseados em comunidade são, geralmente, auto-organizados e dinâmicos, e recebem contribuições de voluntários espalhados por todo o globo. A sobrevivência dessas comunidades, o sucesso a longo prazo, e sua continuidade exigem a entrada constante de novatos. No entanto, os novatos enfrentam muitas barreiras ao tentarem fazer a sua primeira contribuição para um projeto de software livre, o que leva, em muitos casos, a desistências. Portanto, um grande desafio para projetos de software livre é proporcionar maneiras de apoiar os novatos durante a realização de sua primeira contribuição. Nesta tese, nosso objetivo foi identificar e compreender as barreiras que os novatos enfrentam e fornecer estratégias adequadas para reduzir essas barreiras. Para isso, realizamos diversos estudos, utilizando vários métodos de pesquisa. Para identificar as barreiras, foram utilizados dados coletados a partir de: entrevistas semiestruturadas com 36 desenvolvedores de 14 projetos diferentes; 24 respostas a um questionário aberto realizado com desenvolvedores de software livre; feedback de 9 estudantes depois de tentarem contribuir para projetos de software livre; e 20 estudos obtidos por meio de uma revisão sistemática da literatura. Os dados foram analisados utilizando-se procedimentos da Grounded Theory: codificação aberta e axial. Posteriormente, a análise resultou em um modelo conceitual preliminar composto por 58 barreiras agrupadas em seis categorias: diferenças culturais, características dos novatos, problemas de recepção, orientação dos novatos, obstáculos técnicos, e problemas de documentação. Com base no modelo conceitual, desenvolvemos o FLOSScoach, um portal para apoiar os novatos no curso de sua primeira contribuição a projetos de software livre. Para avaliar o portal, realizamos um estudo com alunos de graduação, utilizando dados qualitativos de diários, questionários de autoeficácia (self-efficacy), e o modelo de aceitação tecnológica (TAM, do inglês Technology Acceptance Model). Ao aplicar o modelo em uma aplicação prática e experimentá-lo, pudemos avaliar e melhorar o modelo de barreiras, adequando-o de acordo com as melhorias identificadas durante a concepção da ferramenta, bem como sugestões recebidas dos participantes do estudo. Os resultados do estudo indicam que o portal FLOSScoach desempenhou um papel importante no direcionamento dos novatos e na redução das barreiras relacionadas com o processo de orientação e contribuição, enquanto não foi muito eficiente na redução de barreiras técnicas. Evidenciamos ainda que o portal é útil, fácil de usar, e aumentou a confiança dos novatos. As principais contribuições desta tese são: (i) identificação empírica e modelagem de barreiras enfrentadas pelos novatos em projetos de software livre; e (ii) um portal de informação para apoiar os novatos em projetos de software livre.
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Kepoglu, Volkan Osman. "Development Of Free/libre And Open Source Spatial Data Analysis System Fully Coupled With Geographic Information System." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613163/index.pdf.

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Spatial Data Analysis (SDA) is relatively narrower and constitutes one of the areas of Spatial Analysis. Geographic Information System (GIS) offers a potentially valuable platform for supporting SDA techniques. Integration of SDA with GIS helps SDA to benefit from the data input, storage, retrieval, data manipulation and display capabilities of GIS. Also, GIS can benefit from SDA techniques in which the integration of these techniques can increase the analysis capabilities of GIS. This integration serves for disseminating and facilitating improved understanding of spatial phenomena. How SDA techniques should be integrated with GIS arise the coupling problem. The complete integration of SDA techniques in GIS can be applied without the support of GIS vendor when the free/libre and open source software (FLOSS) development methodology is properly followed. This approach causes to interpret the coupling problem in a new way. This thesis aims to develop a fully coupled SDA with GIS in FLOSS environment. A fully coupled SDA in free GIS software as FLOSS system is developed by writing nearly 13,000 line Python code in 2.5 years. Usage of this system has reached to nearly 1600 unique visitors, 3000 visits and 8600 page views in two years. As the current status of development in GIS is considered, it is unlikely in commercial market to have full coupled SDA techniques in GIS software. However, it is expected to have more SDA developments in proprietary GIS software in the near future as there is an increasing trend for requesting more sophisticated SDA tools.
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42

Coleman, Samuel. "Acceptance of technology innovations in public education| Factors contributing to a teacher's decisionto use free and open source software." Thesis, Alliant International University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3701746.

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Use of free and open source software (FOSS) by teachers in public schools is limited. The purpose of this study was to determine whether there were statistically significant differences among teachers who use FOSS in the classroom, teachers who use proprietary software in the classroom, and teachers who do not use software in the classroom at all, with the goal to propose ways to mitigate barriers to implementation of FOSS by teachers in public schools. The research design was quasi-experimental. Independent t tests were used to measure differences among the three groups on the following independent variables: age of respondent in years, years of teaching experience, primary subject area taught, level of education, number of years of experience in using technology, number of district training sessions or technology initiatives attended in the previous 12 months, impact of school site leadership on implementation of technology in the classroom, and impact of district technology initiatives on implementation of technology in the classroom. The results revealed statistically significant differences only concerning the impact of school site leadership as reported by teachers who used FOSS and teachers who used proprietary software. Recommendations to encourage teachers’ use of FOSS included establishing collaborative processes by instructional staff, administration and information technology personnel to identify and assess appropriate FOSS solutions, training opportunities in the use of FOSS in the classroom, and guidelines to monitor and evaluate the effectiveness of the selected software solutions (proprietary and FOSS).

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Henrico, Susan Jacoba. "Analysing the practical feasibility of using free and open source software for geographical information systems (FOSSGIS) in military operations." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60365.

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Remaining ahead of the enemy in all circumstances is crucial to any military power. Technology, especially GIS, has become a key factor in military operations. GIS can provide the military commander with geospatial information about the theatre of war that can assist him in the planning and execution of his mission. Unfortunately, technology usually comes at a price. GIS software is no exception. The cost of acquiring and maintaining GIS software and software training can be high. The cost of proprietary software limits the use of GIS in military operations. GIS software packages can be divided into proprietary and Free and Open Source Software for GIS (FOSSGIS) packages. GIS software packages consist of numerous tools and functionalities to assist military operations with geospatial queries, analysis and product creation. This study was done in order to evaluate FOSSGIS as a feasible alternative to available proprietary GIS software. FOSSGIS was evaluated in terms of prescribed GIS functionalities, user-friendliness and costs. Should the comparison be favourable, to what extent can FOSSGIS replace proprietary GIS software in military operations? QGIS was used as the FOSSGIS application to compare against ArcGIS. The GIS functionalities that were evaluated were identified by means of the literature study as well as the development of a use case. Results show that all GIS functions tested in this study could be successfully performed by both software products. These results are interesting, since it shows that units or directorates can successfully deploy FOSSGIS in certain use cases in order to expand the existing GIS capabilities for military operations.
Dissertation (MA)--University of Pretoria, 2016.
Geography, Geoinformatics and Meteorology
MA
Unrestricted
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44

Santos, Edgar Pereira dos [UNESP]. "CAD/CAM/Usinagem CNC integrado a engenharia reversa." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152068.

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A sociedade sempre busca inovações como facilitadores de processos para o alcance de objetivos propostos em distintas áreas, utilizando instrumentos, métodos e técnicas diversas. Dentre estas encontra-se a Engenharia Reversa (ER), que é o processo de engenharia afim de se obter um produto ou objeto a partir de um modelo original. Nos últimos anos, com a rápida evolução tecnológica , envolvendo máquinas, ferramentas e softwares, a ER passou a ser um recurso utilizado até mesmo por pequenas e médias empresas. O proposito desta pesquisa é avaliar o desempenho da aplicação de recursos de engenharia, tais como hardwares e softwares de baixo custo ou de uso livre, sobre a ER a fim de obter-se uma peça usinada em uma maquina CNC o mais fiel possível ao modelo físico original. Para isso foram aplicados os conceitos, os processos e recursos necessários nas etapas de reconstrução de um modelo físico , desde a digitalização 3D, utilizando scanners tridimensionais, o tratamento do objeto capturado, a reconstrução do modelo no software CAD até a geração do código G, por meio de softwares CAM, a ser enviado a uma máquina CNC para realização da usinagem e obtenção da peça modelo. Foi utilizado o scanner 3d manual Ciclop, cuja digitalização resultou em dimensões muitas próximas ao objeto original. Também foram utilizados os softwares Meshlab para tratamento do modelo digitalizado e o AutoCad Fusion 3D para criação do modelo CAD e geração dos processos de usinagem e código G, escolhidos devido a facilidade de uso e por serem softwares livres.
Society is always looking for innovations as process facilitators for the objectives in different areas, using tools, and various techniques. Among these is the Reverse Engineering (RE), which is the engineering process in order to obtain a product or object from a original model. In recent years, with the rapid technological evolution, involving machines, tools and software, ER has become a resource used until even by small and medium-sized enterprises. The purpose of this research is to evaluate the performance of engineering resources, such as hardware and software. low cost or free-use software on the RE in order to obtain a part machined in a CNC machine as faithful as possible to the original physical model. For applied the concepts, processes and resources required in the steps reconstruction of a physical model, since 3D scanning, using scanners dimensionality, the treatment of the captured object, the reconstruction of the model in the CAD software to the generation of the G code, through CAM software, to be sent to a CNC machine to perform the machining and obtain the model part. Was the Ciclop 3d manual scanner, whose many close to the original object. Meshlab softwares were also used for handling the scanned model and AutoCad Fusion 3D for creating the model and generation of the machining processes and G code, chosen due to ease of use and because they are free software.
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45

Leonard, Landry. "Le développement d'une configuration stratégique autour du free/libre and open source software : proposition d’un cadre conceptuel à destination des entreprises de l’Open Source commercial." Thesis, Lyon 2, 2011. http://www.theses.fr/2011LYO22021/document.

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Se situant dans le champ de la stratégie, cette thèse souhaite contribuer à l’aide à la réflexion stratégique des entreprises du FLOSS commercial. Cet objectif semble atteint par la fourniture de deux construits (modèle des dynamiques et jeu de propositions) et trois illustrations par des cas d’entreprises représentatives du secteur. Le modèle des cinq dynamiques constitue un support à la formulation de l’intention et à la conception de la configuration stratégique. En éclatant l’approche communautaire classique dans les dynamiques socio-politique, psycho-cognitive et d’usage, ce travail génère un cadre conceptuel qui se propose d’intégrer la notion d’environnement FLOSS plus large que celle de communauté. Ce modèle met en évidence un besoin de repérer les acteurs et pouvoirs en présence dans un projet, de gérer les réticences de ces derniers et de s’appuyer sur les usages pour développer des pratiques qui génèrent de la collaboration. Enfin, le jeu de propositions peut servir aux entreprises du FLOSS commercial de lignes directrices et aux chercheurs de pistes à approfondir
This thesis aims to support business strategic decisions of commercial FLOSS companies. This objective appears to be achieved through two specific and flexible models (theoretical study supported by set of practical proposals) and three open source companies based case studies. The five dynamics' model is used to support the definition of the strategic intents and their deployment within an open source company. Based on socio-political, psycho-cognitive and technological use dynamics, this work generates a conceptual framework integrating the concept of FLOSS environment, much broader than only communities. This model highlights the needs to identify the different actors, their roles and scopes of influence in a project, to manage their reluctance and to mobilize collaboration tools to leverage of FLOSS practices. Finally, the set of proposals can be used as guidelines for commercial FLOSS companies strategy definition and for researchers more specific studies
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Mansoux, Aymeric. "Sandbox culture : a study of the application of free and open source software licensing ideas to art and cultural production." Thesis, Goldsmiths College (University of London), 2017. http://research.gold.ac.uk/22606/.

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In partial response to the inability of intellectual property laws to adapt to data-sharing over computer networks, several initiatives have proposed techno-legal alternatives to encourage the free circulation and transformation of digital works. These alternatives have shaped part of contemporary digital culture for more than three decades and are today often associated with the "free culture" movement. The different strands of this movement are essentially derived from a narrower concept of software freedom developed in the nineteen-eighties, and which is enforced within free and open source software communities. This principle was the first significant effort to articulate a reusable techno-legal template to work around the limitations of intellectual property laws. It also offered a vision of network culture where community participation and sharing was structural. From alternate tools and workflow systems, artist-run servers, network publishing experiments, open date and design lobbies. cooperative and collaborative frameworks, but also novel copyright licensing used by both non-profit organisations and for-profit corporations, the impact on cultural production of practices developed in relation to the ideas of free and open source software has been both influential and broadly applied. However, if it is true that free and open source software has indeed succeeded in becoming a theoretical and practical model for the transformation of art and culture, the question remains at which ways it has provided such a model, how it has been effectively appropriated across different groups and contexts and in what ways these overlap or differ. Using the image of the sandbox, where code becomes a constituent device for different communities to experience varying ideologies and practices, this dissertation aims to map the consequent levels of divergence in interpreting and appropriating the free and open source techno-legal template. This thesis identifies the paradoxes, conflicts, and contradictions within free culture discourse. It explores the tensions between the wish to provide a theoretical universal definition of cultural freedom, and the disorderly reality of its practice and diffusion, appropriation, misunderstanding and miscommunication that together form the fabric of free culture. This dissertation argues that, even though feared, fought, and criticized, these issues are not signs of dysfunctionality but are instead the evidence of cultural diversity within free culture. This dissertation will also demonstrate that conflicts between and within these sandboxes create a democratic process that permits the constant transformation of the free and open source discourse, and is therefore something that should be embraced and neither resisted for substituted for a universal approach to cultural production.
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47

Blekh, Aleksandr. "Governance and organizational sponsorship as success factors in free/libre and open source software development: An empirical investigation using structural equation modeling." NSUWorks, 2015. http://nsuworks.nova.edu/gscis_etd/40.

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Recent advances in information technologies and subsequent explosive growth of computer software use in practically all aspects of everyday life provide tremendous opportunities and benefits for improving people's lives. However, significant proportion of software projects represents cancelled, abandoned or otherwise failed projects. This situation exists not only in commercial software products or government information systems, but also in an increasingly popular and important domain of free/libre and open source software (FLOSS). The problem of failures in software development projects requires identification and understanding of the factors of success and their interrelationships. Practice and previous research suggest that governance of software development projects plays crucial role in their success. Increasing adoption and sponsorship of FLOSS by commercial firms and government organizations present additional challenges; such sponsorship may also interact with governance in FLOSS projects and play a role in determining their success. This dissertation focused on analyzing the role and significance of governance and organizational sponsorship in the success of FLOSS development. This study used both conceptual analysis and empirical methods. The conceptual analysis phase, a preliminary study based on the review of existing literature, produced a partial model of success in FLOSS development. This model was verified in an empirical phase, which statistically analyzed data from multiple FLOSS repositories and other public sources. The statistical analysis was based on structural equation modeling (SEM) approach. Results of this study did not confirm hypothesized effects of the main two factors (governance and organizational sponsorship) on FLOSS success, but confirmed a positive effect of project maturity on the success. The likely reason of the lack of support for the main factors is unavailability of sufficient and correct data for proper operationalization. This and other uncovered issues are planned to be addressed in the future research on the topic, for which this dissertation formed a solid conceptual and data analysis framework.
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Meirelles, Paulo Roberto Miranda. "Monitoramento de métricas de código-fonte em projetos de software livre." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-27082013-090242/.

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Nesta tese de doutorado, apresentamos uma abordagem para a observação das métricas de código-fonte, estudando-as através de suas distribuições e associações, além de discutir as relações de causalidade e implicações práticas-gerenciais para monitoramento das mesmas. Em nossos estudos avaliamos a distribuição e correlações dos valores das métricas de 38 projetos de software livre, dentre os com mais contribuidores ativos em seus repositórios. Para tal, coletamos e analisamos os valores para cada métrica em mais de 344.872 classes e módulos dos projetos avaliados. Complementarmente, para mostrarmos a utilidade do monitoramento de métricas, descrevemos uma extensão e adaptação do modelo de causalidade do conceito de atratividade de projetos de software livre, que indica uma relação estatística entre os valores das métricas de código-fonte e a quantidade de downloads, contribuidores e atualizações (commits) nos repositórios dos projetos. Para isso, realizamos estudos empíricos com milhares de projetos de software livre. Do ponto de vista prático, também contribuímos com um conjunto de ferramentas inovador para a automação da avaliação de projetos de software livre, com ênfase nos estudos e na seleção de métricas, o que permite a análise de código-fonte de acordo com a percepção de qualidade das comunidades de software livre. Entre as principais contribuições desta tese está uma análise detalhada, em relação ao comportamento, valores e estudos de caso, de 15 métricas de código-fonte, o que representa um avanço em comparação a literatura relacionada ao ampliar o número de métricas avaliadas e propor uma abordagem que visa diminuir as contradições das análises das métricas.
In this Ph.D dissertation we present an approach about source code metrics tracking. We have researched source code metrics distributions and associations to discuss their causality and management-practices implications. Our studies have assessed distributions and correlations of source code metric values on 38 free software projects, which have a lot of activated contributors in their repositories. We have collected and analyzed metrics from 344,872 classes and modules of about 38 free software projects. Additionally, to show how it is useful to track source code metrics, we have extended the model of free software attractiveness to include source code metrics. Our technical attractiveness model indicates a statistical relationship between source code metrics and number of downloads, contributors, and commits in the analyzed free software repositories. For that, we have conducted empirical studies with 8,450 free software projects. From a practical point of view, we have contributed with a set of innovative tools for automated evaluation of free software projects. Our tool allow the analyses of source code metrics that mirror quality perceptions from the free software communities point of view.
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Howison, James. "Alone together a socio-technical theory of motivation, coordination and collaboration technologies in organizing for free and open source software development /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2009. http://wwwlib.umi.com/cr/syr/main.

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Reis, Christian Robottom. "Caracterização de um processo de software para projetos de software livre." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-12112014-100100/.

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Software Livre é software fornecido com código fonte, e que pode ser livremente usado, modificado e redistribuído. Projetos de Software Livre são organizações virtuais formadas por indivíduos que trabalham juntos no desenvolvimento de um software livre específico. Estes indivíduos trabalham geograficamente dispersos, utilizando ferramentas simples para coordenar e comunicar seu trabalho através da Internet. Este trabalho analisa esses projetos do ponto de vista de seu processo de software; em outras palavras, analisa as atividades que realizam para produzir, gerenciar e garantir a qualidade do seu software. Na parte inicial do trabalho é feita uma extensa revisão bibliográfica, comentando os principais trabalhos na área, e são detalhadas as características principais dos projetos de software livre. O conteúdo principal deste trabalho resulta de dois anos de participação ativa na comunidade, e de um levantamento realizado através de questionário, detalhando mais de quinhentos projetos diferentes. São apresentadas treze hipóteses experimentais, e os resultados do questionário são discutidos no contexto destas hipóteses. Dos projetos avaliados nesse levantamento, algumas características comuns foram avaliadas. As equipes da grande maioria dos projetos são pequenas, tendo menos de cinco participantes. Além disso, existe uma distribuição equilibrada entre algumas formas de organização descritas na literatura, incluindo o \'ditador benevolente\' de Eric S. Raymond e o \'comité\' exemplificado pelo projeto Apache. Dentre um conjunto de domínios de aplicação determinados, os projetos de software livre se concentram nas áreas de engenharia e desenvolvimento de software, redes e segurança, e aplicações multimídia. Com relação às atividades do processo de software, pode-se dizer que a maioria dos projetos tem requisitos fundamentalmente definidos pelos seus autores, e que a base de usuários de grande parte dos softwares é composta dos seus desenvolvedores e da comunidade de software livre. Uma parcela significativa dos projetos baseia-se em outros softwares pré-existentes, e em padrões publicados previamente. Pouca ênfase é dada à usabilidade, assim como às atividades de garantia de qualidade convencionais. Surpreendentemente, também recebem pouca atenção as atividades de revisão de código e teste sistemático. Entre as ferramentas que os projetos utilizam, se destacam as listas de discussão e os sistemas de controle de versão. Foi estabelecida uma correlação entre a dimensão da equipe do projeto e as atividades de engenharia de software que realiza, mas não se confirmou um vínculo entre estas atividades e a idade do projeto. Foram também estabelecidas relações entre o número de linhas de código do software do projeto e a sua idade, tamanho e domínio de aplicação. Estes resultados são exibidos neste trabalho, e estarão publicamente disponíveis no site Web do projeto. O trabalho conclui descrevendo partes essenciais do processo de software em projetos de software livre, e oferecendo sugestões para trabalhos posteriores.
Free Software (or Open Source) is software provided with source code that may be freely used, modified and redistributed. Free Software Projects are virtual communities of developers that work on a specific free software product. These developers work geographically dispersed, using simple tools to communicate and coordinate their actions over the Internet. This work analyzes these projects with respect to their software process; in other words, the activities they do to produce, manage and ensure the quality of their software. In the initial sections, I perform a large review of related work in this field, and provide an overview of the main characteristics of free software projects. The main contents of this dissertation is based on two years of participation in free software projects, and on a survey based on a questionnaire that describes over five hundred different free software projects. 1 present thirteen initial hypothesis, using them as a framework to analyze the results of the survey. Among the projects evaluated in this survey, some common aspeets were observed. For instance, most projects have a small team, with less than five developers. I also found a balanced distribution of leadership systems described in other works, including Eric Raymond\'s \'benevolent dictator\' and the committee exemplified by the Apache project. The domains in which these projects tend to concentrate are software engineering and development, networks and security, and multimédia applications. Concerning the software process activities, most projects have their functional requirements established by their authors: the user base for most of the projects includes the development team and the free software community. A large proportion of the projects surveyed are based on pre-existing software, or on previously published standards. Little emphasis is placed on usability and conventional fornis of quality assurance. Remarkably, this lack of emphasis on conventional process includes activities like review and testing. Among the tools used by the projects, mailing lists and versioning systems such as CVS come out ahead by a strong margin. A correlation was identified between the size of the project\'s team and the software engineering activities that it realizes, but I could not establish a link between the age of the project and these activities. Other correlations were established between the size of the project\'s codebase (in terms of lines of code) and its age, size and application domain. The dissertation concludes describing essential parts of the software process in free software projects, and offering suggestions for future work.
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