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1
Runardotter, Mari. "On organizing for digital preservation". Doctoral thesis, Luleå : Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/2743215.
Testo completo
2
Cloonan, Michele, e Shelby Sanett. "The Preservation of Digital Content". Johns Hopkins University Press, 2005. http://hdl.handle.net/10150/106050.
Testo completoAbstract (sommario):
The authors are conducting a three-part study to evaluate current trends in the preservation
of digital content, with an emphasis on electronic records. The study emanated from the authorsâ
work on the Preservation Task Force of the International Research on Permanent Authentic Records
in Electronic Systems (InterPARES) project. This article incorporates the findings of both the survey
and individual key-informant interviews that we conducted from August 2001 through February
2003, as round 2 of the study. Round 2 builds on the 2000â 2001 round 1 survey that sought to
identify and describe strategies for preserving electronic records. In this second round the authors
found that progress has been made in some areas while it is still lags in others.1 The full study
consists of three phases: round 1 identified and surveyed 13 institutions, projects, and programs
in North America, Australia, and Europe. Round 2 surveyed eight of the 13 institutions again to
follow up on their progress. Additionally, we interviewed 18 key informants, including archivists
and librarians. In round 3 the authors will each conduct one case study drawn from the survey
participants in rounds 1 and 2. By the end of the three rounds, the authors will have studied a
continuum of activities (over a six-year period) that constitutes a range of digital preservation
strategies. The study will have charted the change in technological developments over this periodâ
developments that have occurred in our survey institutions to meet the requirements of their
mandates to preserve digital content for as long as needed.
3
Dappert, Angela. "DePICT : a conceptual model for digital preservation". Thesis, University of Portsmouth, 2013. https://researchportal.port.ac.uk/portal/en/theses/depict(1c00d04a-7588-4745-be94-1ee1a73b51ee).html.
Testo completoAbstract (sommario):
Digital Preservation addresses a significant threat to our cultural and economic foundation: the loss of access to valuable and, sometimes, unique information that is captured in digital form through obsolescence, deterioration or loss of information of how to access the contents. Digital Preservation has been defined as “The series of managed activities necessary to ensure continued access to digital materials for as long as necessary” (Jones, Beagrie, 2001/2008). This thesis develops a conceptual model of the core concepts and constraints that appear in digital preservation - DePICT (Digital PreservatIon ConceptualisaTion). This includes a conceptual model of the digital preservation domain, a top-level vocabulary for the concepts in the model, an in-depth analysis of the role of digital object properties, characteristics, and the constraints that guide digital preservation processes, and of how properties, characteristics and constraints affect the interaction of digital preservation services. In addition, it presents a machine-interpretable XML representation of this conceptual model to support automated digital preservation tools. Previous preservation models have focused on preserving technical properties of digital files. Such an approach limits the choices of preservation actions and does not fully reflect preservation activities in practice. Organisations consider properties that go beyond technical aspects and that encompass a wide range of factors that influence and guide preservation processes, including organisational, legal, and financial ones. Consequently, it is necessary to be able to handle ‘digital’ objects in a very wide sense, including abstract objects, such as intellectual entities and collections, in addition to the files and sets of files that create renditions of logical objects that are normally considered. In addition, we find that not only the digital objects' properties, but also the properties of the environments in which they exist, guide digital preservation processes. Furthermore, organisations use risk-based analysis for their preservation strategies, policies and preservation planning. They combine information about risks with an understanding of actions that are expected to mitigate the risks. Risk and action specifications can be dependent on properties of the actions, as well as on properties of objects or environments which form the input and output of those actions. The model presented here supports this view explicitly. It links risks with the actions that mitigate them and expresses them in stakeholder specific constraints. Risk, actions and constraints are top-level entities in this model. In addition, digital objects and environments are top-level entities on an equal level. Models that do not have this property limit the choice of preservation actions to ones that transform a file in order to mitigate a risk. Establishing environments as top-level entities enables us to treat risks to objects, environments, or a combination of both. The DePICT model is the first conceptual model in the Digital Preservation domain that supports a comprehensive, whole life-cycle approach for dynamic, interacting preservation processes, rather than taking the customary and more limited view that is concerned with the management of digital objects once they are stored in a long-term repository.
4
McGovern, Nancy. "Technology responsiveness for digital preservation : a model". Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/18017/.
Testo completoAbstract (sommario):
Digital preservation may be defined as the cumulative actions undertaken by an organisation or individual to ensure that digital content is usable across generations of information technology. As technological change occurs, the digital preservation community must detect relevant technology developments, determine their implications for preserving digital content, and develop timely and appropriate responses to take full advantage of progress and minimize obsolescence. This thesis discusses the results of an investigation of technology responsiveness for digital preservation. The research produced a technology response model that defines the roles, functions, and content component for technology responsiveness. The model built on the results of an exploration of the nature and meaning of technological change and an evaluation of existing technology responses that might be adapted for digital preservation. The development of the model followed the six-step process defined by constructive research methodology, an approach that is most commonly used in information technology research and that is extensible to digital preservation research. This thesis defines the term technology responsiveness as the ability to develop continually effective responses to ongoing technological change through iterative monitoring, assessment, and response using the technology response model for digital preservation.
5
BoisAubin, Pierre A. "Digital Preservation of Haitian Mythology Music Notation". Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:24078357.
Testo completoAbstract (sommario):
This project aims at preserving Haitian mythology music; it is conceptualized as having two components:
• Digital Preservation Archive: The process generates equivalent notation of hardcopies as well as supplementary audio clip. The resulting artifacts are archived in a website.
• Music Production Using Media Technologies: is an effort to stimulate interest in the music. Digital media technologies are applied toward arranging mythology songs for small Afro Western styled musical group. We design a workflow for notating, recording, and staging the music.
6
Smith, MacKenzie. "Exploring Variety in Digital Collections and the Implications for Digital Preservation". University of Illinois at Urbana-Champaign, Graduate School of Library & Information Science, Publications Office, 2005. http://hdl.handle.net/1721.1/30592.
Testo completoAbstract (sommario):
The amount of digital content produced at academic research institutions is large, and libraries and archives at these institutions have a responsibility to bring this digital material under curatorial control in order to manage and preserve it over time. But this is a daunting task with few proven models, requiring new technology, policies, procedures, core staff competencies, and cost models. The MIT Libraries are working with the DSpace(TM) open-source digital repository platform to explore the problem of capturing research and teaching material in any digital format and preserving it over time. By collaborating on this problem with other research institutions using the DSpace platform in the United States, the United Kingdom, Europe, and other parts of the world, as well as with other important efforts in the digital preservation arena, we are beginning to see ways of managing arbitrary digital content that might make digital preservation an achievable goal.Page image PDF
7
Carstens, Andries Theunis. "Digitising photographic negatives and prints for preservation". Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1355.
Testo completoAbstract (sommario):
A DISSERTATION PRESENTED TO THE FACULTY OF INFORMATICS AND DESIGN
OF THE CAPE PENINSULA UNIVERSITY OF TECHNOLOGY IN FULFILMENT OF
THE REQUIREMENTS FOR THE DEGREE OF MAGISTER TECHNOLOGIAE
PHOTOGRAPHY
CAPE PENINSULA UNIVERSITY OF TECHNOLOGY
2013This study deals with the pitfalls and standards associated with the digitisation of photographic artefacts in formal collections. The popularity of the digital medium caused a rapid increase in the demand for converting images into digital files. The need for equipment capable of executing the task successfully, the pressure on collection managers to display their collections to the world and the demand for knowledge needed by managers and operators created pressure to perform optimally and often in great haste. As a result of the rush to create digital image files to be displayed and to be preserved, the decisions that are being made may be questionable. The best choice of file formats for longevity, setting and maintaining standards to guarantee quality digital files and consultation with experts in the field of digitisation as well as attention to best practices are important aspects which must be considered. In order to determine the state of affairs in countries with an advanced knowledge and experience in the field of digitisation, a comprehensive literature study was done. It was found that enough information exists to enable collection managers in South Africa to make well informed decisions to ensure a high quality of digital collection. By means of questionnaires, a survey was undertaken amongst selected Western Cape image preservation institutions to determine the level of knowledge of the managers who are required to make informed decisions. The questionnaire was designed to give insight into choices being made regarding the technical quality, workflow and best practice aspects of digitisation. Comparing the outcome of the questionnaires with best practices and recommended standards in countries with an advanced level of experience it was found that not enough of this experience and knowledge is used by local collection managers although readily available. In some cases standards are disregarded completely. The study also investigated by means of questionnaires the perception of the digital preservation of image files by fulltime photographic students and volunteer members of the Photographic Society of South Africa. It was found that uncertainty exist within both groups with regard to file longevity and access to files in five to ten year's time. Digitisation standards are set and maintained by the use of specially designed targets which enable digitising managers to maintain control over the quality of the digital content as well as monitoring of equipment performance. The use of these targets to set standards were investigated and found to be an accurate and easy method of maintaining control over the standard and quality of digital files. Suppliers of digitising equipment very often market their equipment as being of a high quality and being able to fulfil the required digitisation tasks. Testing selected digitising equipment by means of specially designed targets proved however that potential buyers of equipment in the high cost range should be very cautious about suppliers' claims without proof of performance. Using targets to verify performance should be a routine check before any purchase. The study concludes with recommendations of implementing standards and it points to potential future research.
8
Recker, Astrid. "The Preservation of Digital Objects in German Repositories". Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-33364.
Testo completoAbstract (sommario):
Taking its cue from the increasing amount of digital content deposited into institutional and subject repositories as well as the open question of repositories' role in long-term preservation, this study presents case studies of three German institutional and subject repositories all of which are in a different stage of establishing a (cooperative) framework for the long-term preservation of their digital collections. Drawing on different sets of criteria for trustworthy repositories, it is investigated which strategies the selected repositories pursue to preserve the digital assets in their collections, and how these strategies are implemented with the help of both human repository staff and the repository software used. The following repositories are considered: pedocs (Deutsches Institut für Internationale Pädagogische Forschung), JUWEL (Forschungszentrum Jülich), and Qucosa (SLUB Dresden). In that the latter can be regarded as examples for common types of (German) repositories, the results of this study might on the one hand serve as a guideline for repositories that intend, similar to the ones described here, to explore questions of long-term preservation in the near future, or are even taking their first concrete steps in this field. On the other hand, it is hoped that this work can at least give some hints as to the stage and status of long-term preservation in the German repository landscape.
9
Rey, Claudio Gustavo. "Noise filtering with edge preservation in digital images". Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/26322.
Testo completoAbstract (sommario):
The widespread use of the absolute gradient and the sample variance in present day local noise filters in digital image processing is pointed out. It is shown that the sample variance and the absolute gradient can be viewed as measures of the modelling error for a simple zeroth order local image model. This is shown to lead to a general formulation of local noise filtering applicable to the great majority of current local noise niters for digital images. This formulations describes local noise filtering as a two step process. In the first step a robust estimation of every pixel z[sub o] is obtained. In the second step a better estimate of z[sub o] is obtained by performing a weighted sum within a neighborhood of z[sub o]. The weights in the second step are related to some measure of modelling error of the above zeroth order model; namely, the absolute gradient or the sample variance.
Of the above two measures of modelling error, the sample variance is shown to be the least sensitive to noise. Furthermore, the sample variance is also more sensitive to faint image edges. Therefore,the sample variance is the most desirable of the above two measures of modelling error. Unfortunately, its use until now has been hampered by its poor edge localization. To solve this problem a new measure of modelling error is introduced which achieves far superior edge localization than the sample variance (though still lower than the absolute gradient) but maintains the low noise sensitivity. A filter is designed based on this new measure of modelling error (of the zeroth order model described above) which is shown to perform better, in a least squares sense, than all other local noise filters for non-impulsive additive and multiplicative noise. A practical implementation of this original filter is also presented.Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
10
Carvalho, Beatriz Trinchão Andrade de. "Image-based appearance preservation". reponame:Repositório Institucional da UFPR, 2013. http://hdl.handle.net/1884/34698.
Testo completoAbstract (sommario):
Orientadora : Profª Drª Olga Regina Pereira BellonCoorientador : Prof.Dr. Luciano Silva
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciencias Exatas, Programa de Pós-Graduação em Informática. Defesa: Curitiba, 11/10/2013
Inclui bibliografia
Resumo: A preservação tridimensional digital de objetos reais compreende dois aspectos: a preservação da forma do objeto e a preservação de sua aparência. Esta tese tem como foco a preservação da aparência de objetos reais baseada em imagens e provê uma série de contribuições sobre o tema. A primeira contribuição consiste em dois grupos de experimentos, onde cada um trabalha uma abordagem diferente na preservação da aparência baseada em imagens. Esses experimentos são baseados em conceitos fundamentais relacionados ao comportamento da luz e em uma compilação de trabalhos que visam preservar a aparência de objetos reais usando diferentes tipos de imagens. O primeiro grupo de experimentos tenta desconsiderar ao máximo a inuência da luz. O segundo vai um passo além e considera uma única fonte de luz. Estes experimentos são a base e motivação para o desenvolvimento da principal contribuição desta tese, que é um novo método de preservação da aparência baseado em imagens que considera todo o ambiente como fonte de luz. Ele apresenta como novidade o fato de estimar a luz vinda de todo o ambiente para cada ponto em uma região na superfície de um objeto. Até onde foi pesquisado neste trabalho, nenhum método existente adota essa abordagem. Considerar todo o ambiente como fonte de luz permite configurações flexíveis durante a aquisição e, já que reproduz o que acontece na realidade, recupera informações potencialmente mais confiáveis sobre a iluminação incidente. Esta tese apresenta este método e sua aplicação em ambientes reais e sintéticos. Conclusões sobre este trabalho são apresentadas e direções.
Abstract: The three-dimensional digital preservation of real objects comprises two main aspects: the preservation of the shape of the object and the preservation of its appearance. This thesis focuses on the image-based appearance preservation of real objects and provides a set of contributions on the theme. The first contribution consists in two groups of experiments, where each one of them targets one different image-based appearance preservation approach. These experiments are based in fundamental concepts related to the behavior of light and in a compilation of works that aim to preserve the appearance of real objects using different types of images. The first group of experiments attempts to disregard as much as possible the inuence of the environment light. The second one goes one step further and considers a single light source. These experiments were the basis and motivation for the development of the main contribution of this thesis, which is a novel image-based appearance preservation method that considers the whole environment as a source of light. It presents as novelty the fact that it estimates the incoming light from the whole environment to each point in an object surface patch. At the best knowledge of this work, none of the current existing methods adopts this approach. Considering the whole environment as source of light allows exible acquisition setups and, as it reproduces what happens in reality, potentially retrieves more reliable information about the incident lighting. This thesis presents this method and its application on real and synthetic environments. Conclusions about this work are presented and future research directions are discussed.
11
Suman, Aparajita. "Digital librarians: The challenges ahead". School of Communication & Information, Nanyang Technological University, 2006. http://hdl.handle.net/10150/105691.
Testo completoAbstract (sommario):
Poster paperThe advent of Information and communication technology has revolutionized the way information was accessed and disseminated; one of the most visible changes came in the arena of librarianship. Suddenly, the idea of easy, fingertip access to information became widely prevalent and phrases like "virtual library," "electronic library," "library without walls" and, most recently, "digital library," very popular. However, this produced a new and confusing bog of electronic "stuff" that is hard to find, hard to use, buried in restrictions, unreliable in content, and useless to researchers baffled by bad choices of material for expensive digitisation investments? Now, the question is sustaining digital libraries will require overcoming substantial uncertainties about long-term preservation, institutional commitments, and financing. AND here lies the challenge for the digital librarian!!!! Playing the balancing act between management, fast changing needs of the user community and ever changing information storage media and technologies.
12
Grace, John A. "Adapting preservation policy in archives to the digital age". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ52989.pdf.
Testo completo
13
Luetgen, Michael. "Digital vs. Analogous Long Term Preservation. Microfilm still alive ...?" Sächsische Landesbibliothek - Staats- und Universitätsbibliothek Dresden, 2017. https://slub.qucosa.de/id/qucosa%3A16404.
Testo completoAbstract (sommario):
The microfilm as a medium for long term preservation is still alive. Especially in archives the microfilm is part of the strategies. But also libraries are using microfilm until today – although it’s not a user-friendly media type and the access to information is very limited and uncomfortable.
Examples of the German State Archives and from other countries show these strategies. Standards for microfilming are settled and well accepted. In the digital long term preservation standards are missing.
The presentation will give an overview of
››Current status of analogous Long Term Preservation (examples, standards, tendencies)
››Current status of digital long term preservation (examples, tools, standards, tendencies)
››Analogous equipment
››Risk management
››Cost comparison digital vs. analogous
››Resume and practical hints
14
Han, Yan, e Chi Pak Chan. "Modeling System Reliability For Digital Preservation: Model Modification and Four-Copy Model Study". British Library, 2008. http://hdl.handle.net/10150/105968.
Testo completoAbstract (sommario):
Research has been studied to evaluate the reliability of storage media and the reliability of a computer backup system. In this paper, we use the Continuous Time Markov Chain to model and analyze the reliability of a computer backup system. We propose a modified model from that of the Constantopoulos, Doerr and Petraki [1]. We analyze the difference, show computational results, and propose new input parameters (e.g. time to repair) for the model from our experience. Further we developed a four-copy data model to test if it fulfills the sample reliability rate set by the RLG-NARA. The modeling process can be applied to construct models for computer preservation systems using different storage media. The reliability of constructed models can be calculated so that preservation institutions can have quantitative data to decide their preservation strategies.
15
Yu, Kin-ying, e 余見英. "Long term preservation of electronic documents". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30073200.
Testo completo
16
Gotis, Georgos, e Ilya Nagibin. "Metadata in Digital Preservation and Exchange of Electronic Healthcare Records". Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64963.
Testo completoAbstract (sommario):
The Swedish National Archives are in charge of the management of Common Specifications (CS). CS are genericmetadata specifications that provides structure and markup when transferring digital information betweeninformation systems and to electronic archives. As of now there is no CS for electronic healthcare records (EHR).Organizations around Sweden have developed their own specifications for transferring healthcare information. Inaddition to that, there are comprehensive international EHR metadata standards established. The Swedish NationalArchives have commissioned a study of EHR metadata specifications and standards to aid in the development of theCS.A Delphi study was conducted, including respondents from major archiving organizations in Sweden, to identifynecessary metadata categories when exchanging EHRs. The data was analyzed considering the international EHRmetadata standards HL7 CDA2 and CEN/ISO EN13606, as well as digital preservation metadata categories. Theresults were a set of metadata categories necessary to include in a CS. In addition, a subset of suggested mandatorymetadata categories is proposed and a list of implications for practice. Clinical codes, auditing, and separatingmetadata related to different contexts are a sample size of the implications.The results were evaluated in an interview with the Swedish National Archives, as well as Sydarkivera. Three criteriafor evaluating the results were proposed, being that the results had to consider a common terminology as well as bebased on a metadata standard and Swedish metadata specifications for EHRs. The interview revealed that the resultssatisfied these criterions, except for requiring a study on one additional user environment of EHRs.
17
Pramartha, Cokorda Rai Adi. "Digital Preservation of Cultural Heritage: The Case of Balinese Kulkul". Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18360.
Testo completoAbstract (sommario):
Understanding our past determines our ability to understand the present. In this thesis, we present the details of our research dealing with one aspect of Balinese culture, the Balinese traditional communication system (kulkul), undertaken in the Indonesian island of Bali. Balinese kulkuls are mainly made of wood or bamboo and are installed in the bale kulkul that are typically located near temples, and in every temple area, village, and banjar in Bali. The objects, cultural practices, and messages surrounding the different kulkul sounds represent a distinct and unique dimension of Balinese cultural heritage. We focus on capturing and representing not only the information encoded in the artefact, but also the information surrounding the object, such as that on contextual and cultural practices. The central aim of our project is to document, organise, and preserve the relevant kulkul knowledge for the benefit of the Balinese community, and the younger generations in particular by designing and developing a digital portal as a dynamic repository. The basic kulkul knowledge and understanding were obtained through in-depth interviews with selected Balinese cultural experts and knowledgeable community members. Using the results of the interviews, we introduce a new cultural framework based on Balinese cultural principles (Tri Hita Karana and Desa Kala Patra) to capture, classify, and organise cultural artefacts and knowledge of practices, and design and develop the online digital portal prototype to enable the sharing and growth of Balinese kulkul-related knowledge. Finally, the digital portal was made available online at http://ccbp.oss.web.id, and the extensive evaluation was carried out to selected users and communities. The evaluation result suggests that generally, the users perceived the digital portal to be useful and easy to use.
18
Smith, MacKenzie. "Eternal Bits". IEEE, 2005. http://hdl.handle.net/1721.1/29463.
Testo completoAbstract (sommario):
The MIT Libraries is addressing the problem of maintaining and sharing digital content over the long haul with a project called DSpace. For this digital repository, a simple, open-source software application was built that not only accepts digital materials and makes them available on the Web but also puts them into a data management regime that helps to preserve them for generations to come. Other organizations worldwide have begun similar efforts including Cornell University, and the University of Toronto, the University of Cambridge. DSpace has a growing group of committed programmers distributed across the globe who continually maintain and improve it.
19
India, National Mission for Manuscripts. "Legal and Policy Framework for Promoting Equitable Access to Documentary Heritage: Report Submitted to UNESCO by National Mission for Manuscripts, India". UNESCO, 2008. http://hdl.handle.net/10150/105516.
Testo completoAbstract (sommario):
The National Mission for Manuscripts of India, in association with UNESCO, completed a research study to assist in the development of legal and policy framework and protocols for promoting equitable access to documentary heritage, relevant to India and other South Asian countries.
Entitled Legal and Policy Framework for Promoting Equitable Access to Documentary Heritage, the study seeks to accurately identify and critically examine the legal and policy framework for promoting equitable access to documentary heritage. The National Mission for Manuscripts is the most important institution in India dealing with bibliographic databases and the conservation and preservation of valuable manuscripts. The study covers the legal and policy framework which envelops the lifecycle of the Mission's work: access to manuscripts, their digitisation and creation of databases.
By critically examining the legal rules in the practical context of the Missionâ s work, the research team has put together the first review of an initiative aimed at the protection of Indian traditional knowledge. The study illustrates working patterns of the Mission within the legal and policy framework of the country. It is a helpful sourcebook for understanding South Asian legal and policy framework for accessing documentary heritage collections.
While the study does not set out to be the final word on these policy initiatives, it definitely makes significant progress in the policy debate and legal literature in this field. The conclusions presented in the form of draft legal agreements and policy recommendations will, with no doubt, be valuable tools for South Asian countries that share similar legal and policy framework within the sub-region.
20
Ravenwood, Clare. "Selection of digital material for preservation in libraries, archives and museums". Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13423.
Testo completoAbstract (sommario):
Digital material has different preservation requirements than non-digital and is at greater risk of loss unless deliberate preservation activities are undertaken. Digital preservation is an on-going managed process designed to enable continued use of digital material for as long as necessary. Much of the digital preservation research to date has focused on understanding technical steps in preserving digital objects and there has been less attention paid to assumptions about selection and the conceptual underpinnings of practice. Selection is done, not conceptualised. Therefore the aim of this research was to investigate the theory and practice of selection for digital preservation in UK memory institutions. The objectives employed to achieve this aim were firstly to examine the underlying theory relating to selection in libraries, archives and museums of non-digital material. The research then went on to investigate who the stakeholders are in selection, how selection of digital material is performed and identifying the key influential factors in selection. An intensive, qualitative approach was used to complete these objectives. A thorough review of the literature provided a theoretical background to selection in libraries, archives and museums. Then preliminary data were gathered through a set of exploratory interviews with eight digital preservation experts in order to provide an overview of selection for digital preservation. The findings from these interviews then formed the basis for the second set of interviews with twenty five practitioners working in libraries, archives and museums. The views of practitioners were under-explored in the literature although it is they that perform selection. In addition to these interviews, twenty two current digital preservation policies were examined. This research has found that there is on the whole little change required for selecting digital material, in comparison to selecting non-digital material, although technical criteria relating to the ability of the institution to manage and preserve the material are of high importance. There is a clear assumption in institutions of selection leading only to permanent collecting, which should be questioned. This research has uncovered drivers to selection, including external funders, and barriers, which include a lack of confidence and knowledge on the part of practitioners in how to select and manage digital material. Concepts identified through this research provide a deeper understanding of selection for digital preservation in different contexts and encapsulate key factors underpinning selection. The concept of professionalism is a key factor; the need to be professional and ethical guide s practitioners through specific professional skills and knowledge. The practitioners become engaged with digital material and the level of engagement mirrors the way digital material is conceptualised by practitioners. Many stakeholders were identified, including managers, senior managers, users, creators and donors, funders, other organisations and IT staff. Relationships with stakeholders and the possible roles they play in selection were found to be key factors in selection. These findings contributed to the achievement of the final objective, which was to develop a conceptual model of key factors underpinning selection for of digital material for preservation. The conceptual model consists of five main concepts and their relationships: professionalism; relationships; organisational capabilities; material properties; and boundaries. There is a clear need for greater availability and access to training and networking opportunities for practitioners in order to increase engagement with digital material. Through this research, factors relating to selection have been identified and conceptualised. It has uncovered issues not previously addressed, in particular relating to the social aspect of selection. This research provides an understanding of the complexities of selection and the influences upon it.
21
Tinoco, Anita Goreti Estêvão. "Preservação de documentos digitais nos arquivos municipais portugueses". Master's thesis, Universidade de Évora, 2011. http://hdl.handle.net/10174/12091.
Testo completoAbstract (sommario):
O aumento crescente de documentos em ambiente digital torna necessária a aplicação
de medidas de preservação digital para que os arquivos possam ser usados como
fontes confiáveis de informação. Seguindo o método quantitativo, este estudo analisa
as políticas, práticas e procedimentos de preservação digital a longo prazo adoptadas
pelos arquivos municipais portugueses para garantir a continuidade e uso de
documentos digitais autênticos. Os dados foram recolhidos através de inquérito por
questionário dirigido aos responsáveis pelo arquivo municipal. Destacam-se os
seguintes resultados: a generalidade dos arquivos municipais não definiu uma política
de preservação digital, utiliza sobretudo estratégias de preservação digital de
curto/médio prazo e fá-lo devido a imperativos de acesso e de modernização
administrativa. Os custos elevados, a falta de recursos humanos, a diversidade de
suportes e de formatos e a complexidade das normas e padrões são os principais
entraves ao desenvolvimento de medidas de preservação digital. Tendo em conta os
resultados, apresentam-se algumas recomendações para a correcta preservação de
documentos digitais de arquivo. Este estudo visa contribuir para o aumento do
conhecimento sobre a forma como os arquivos municipais portugueses estão a
enfrentar os problemas e desafios associados à preservação de documentos digitais
bem como para o desenvolvimento de mais e melhores medidas de preservação
digital; ### ABSTRACT:
The documents increase within a digital era calls for the implementation of digital
preservation measures, so that the archives may be used as reliable information
sources. Following the quantitative method, this dissertation analyses the policies,
methods and procedures of long-run digital preservation adopted by the Portuguese
municipal archives to ensure the continuity and the use of valid digital documents. The
data was collected by means of a questionnaire aimed at the municipal archive
responsible people. The following outcome was predominant: the majority of the
municipal archives did not define a digital preservation policy; it applies above all
medium/short-run strategies of digital preservation, on grounds of access and
administrative modernisation imperatives. The costs, the lack of human resources, the
variety of hardware and formats, as well as the standards and patterns complexity
account for the main barriers in the development of digital preservation measures. In
the light of the outcome, recommendations will be presented for a proper preservation
of archive digital documents. This dissertation aims to raise further awareness of the
Portuguese municipal archives response to the problems and challenges that result
from the digital documents preservation, as well as it endeavours to contribute to the
development of more and improved measures of digital preservation.
22
Panasco, António Vicente Trindade. "O contributo das bibliotecas escolares na promoção do sucesso educativo: um estudo com alunos da Escola E.B. 2.3 Padre Bento Pereira de Borba". Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/12097.
Testo completoAbstract (sommario):
O aumento crescente de documentos em ambiente digital torna necessária a aplicação
de medidas de preservação digital para que os arquivos possam ser usados como
fontes confiáveis de informação. Seguindo o método quantitativo, este estudo analisa
as políticas, práticas e procedimentos de preservação digital a longo prazo adoptadas
pelos arquivos municipais portugueses para garantir a continuidade e uso de
documentos digitais autênticos. Os dados foram recolhidos através de inquérito por
questionário dirigido aos responsáveis pelo arquivo municipal. Destacam-se os
seguintes resultados: a generalidade dos arquivos municipais não definiu uma política
de preservação digital, utiliza sobretudo estratégias de preservação digital de
curto/médio prazo e fá-lo devido a imperativos de acesso e de modernização
administrativa. Os custos elevados, a falta de recursos humanos, a diversidade de
suportes e de formatos e a complexidade das normas e padrões são os principais
entraves ao desenvolvimento de medidas de preservação digital. Tendo em conta os
resultados, apresentam-se algumas recomendações para a correcta preservação de
documentos digitais de arquivo. Este estudo visa contribuir para o aumento do
conhecimento sobre a forma como os arquivos municipais portugueses estão a
enfrentar os problemas e desafios associados à preservação de documentos digitais
bem como para o desenvolvimento de mais e melhores medidas de preservação
digital; ### ABSTRACT:
The documents increase within a digital era calls for the implementation of digital
preservation measures, so that the archives may be used as reliable information
sources. Following the quantitative method, this dissertation analyses the policies,
methods and procedures of long-run digital preservation adopted by the Portuguese
municipal archives to ensure the continuity and the use of valid digital documents. The
data was collected by means of a questionnaire aimed at the municipal archive
responsible people. The following outcome was predominant: the majority of the
municipal archives did not define a digital preservation policy; it applies above all
medium/short-run strategies of digital preservation, on grounds of access and
administrative modernisation imperatives. The costs, the lack of human resources, the
variety of hardware and formats, as well as the standards and patterns complexity
account for the main barriers in the development of digital preservation measures. In
the light of the outcome, recommendations will be presented for a proper preservation
of archive digital documents. This dissertation aims to raise further awareness of the
Portuguese municipal archives response to the problems and challenges that result
from the digital documents preservation, as well as it endeavours to contribute to the
development of more and improved measures of digital preservation.
23
Rauch, Carl. "Preserving digital entities: A framework for choosing and testing preservation strategies". Thesis, Vienna University of Technology, 2004. http://hdl.handle.net/10919/71566.
Testo completoAbstract (sommario):
The long-term preservation of digital objects has become increasingly relevant. Libraries, public institutions and museums, but also companies are requesting solutions to store their digital files with all relevant contents and attributes for the future. This master thesis makes two contributions to the research in digital preservation.The first attempt is the creation of a testbed which stores many files in different file formats. These files can be used to evaluate the impact of preservation solutions. In this paper an environment for storing and describing files is being suggested and implemented.The second contribution is made by presenting a framework which is based on Utility Analysis for evaluating different preservation solutions. The application of a detailed hierarchy of objectives, considering the individual requirements of the user, will allow a reasonable and clear decision for a specific preservation solution, which can be supported with arguments. The theoretic framework is evaluated in two casestudies. For the first one the whole process is being realized, for the second example only the major part of the analysis, the objective tree, is treated in detail.
24
Murphy, Brian Michael. "The Future of American Memory: Media Preservation, Photography, and Digital Archives". The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1398876304.
Testo completo
25
Araujo, Priscilla Mara Bermudes. "Preservação digital e os periódicos científicos eletrônicos brasileiros em Ciência da Informação". Instituto Brasileiro de Informação em Ciência e Tecnologia/Universidade Federal do Rio de Janeiro, 2015. http://ridi.ibict.br/handle/123456789/857.
Testo completoAbstract (sommario):
Submitted by Priscilla Araujo (priscilla@ibict.br) on 2016-07-26T17:41:49Z
No. of bitstreams: 2
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PriscillaDissertaçãoFinal01.pdf: 7022366 bytes, checksum: b213e5571c0b525690f16fee628b4b8b (MD5)Made available in DSpace on 2016-07-26T17:41:49Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) PriscillaDissertaçãoFinal01.pdf: 7022366 bytes, checksum: b213e5571c0b525690f16fee628b4b8b (MD5) Previous issue date: 2015-08-10
Aborda sobre a preservação digital dos periódicos científicos eletrônicos em Ciência da Informação publicados no Brasil. Ressaltam-se primeiramente, conceituações e características relacionadas aos periódicos científicos eletrônicos e aos objetos digitais, além de elementos procedimentais e práticas envolvidas no âmbito da preservação digital de periódicos eletrônicos, conforme a literatura especializada. Foram identificadas também as ações das iniciativas internacionais e brasileiras de preservação digital de periódicos eletrônicos, entre elas, a Rede Cariniana, pioneira iniciativa coletiva brasileira de preservação digital. Em seguida, são analisados os resultados do questionário aplicado aos periódicos selecionados para esta pesquisa, bem como a observação nos sites The Keepers e da Rede Cariniana para complementar a pesquisa empírica inerente à preservação digital desses periódicos. Com base nesse aporte teórico e analítico foi possível apresentar o panorama das práticas de preservação digital dos periódicos científicos eletrônicos brasileiros em Ciência da Informação, enfatizando a importância das ações de preservação digital para assegurar o armazenamento adequado, a usabilidade e o acesso a longo prazo desses objetos digitais.
Discusses about the digital preservation of electronic journals in Information Science published in Brazil. Emphasizes first, concepts and functions related to electronic journals and digital objects, as well as procedural elements and practices involved in the framework of digital preservation of electronic journal, according to the specialized literature. International and Brazilian initiatives actions were also identified, among them, Cariniana Network, a pioneering Brazilian collective initiative of digital preservation. Then, analyzes the results of the questionnaire applied to the selected journals for this research and observation in sites The Keepers and Cariniana Network to complement the empirical research inherent in digital preservation of these journals. Based on this theoretical and analytical contribution it was possible to present an overview of digital preservation practices of Brazilian electronic journals in information science, emphasizing the importance of digital preservation actions to ensure proper storage, usability and long-term access to these digital objects.
26
Silva, Carla Sofia Oliveira Pina Fernandes. "A questão da preservação digital numa perspectiva orientada segundo o Open Archival Information System". Master's thesis, Universidade de Évora, 2007. http://hdl.handle.net/10174/17880.
Testo completoAbstract (sommario):
O aumento da produção da informação digital nas últimas décadas, a instabilidade dos meios para transportar e armazenar estes dados, o constante risco da obsolescência tecnológica, conduziram à necessidade de desenvolver iniciativas que tratem do problema da preservação digital de objetos nado-digitais. Interrompido o suporte tecnológico, interrompem-se os circuitos documentais, o acesso aos dados, e a informação desaparece. Atualmente, o OAIS* - um sistema aberto de informação de arquivo, tal como o nome denuncia - é a alternativa mais viável para uma normalização e para o desenvolvimento de um sistema para a preservação e manutenção de acessos à informação nado-digital a longo prazo. Os objetivos? Ampliar a consciência e a compreensão de conceitos relevantes para a preservação dos objetos digitais, avaliar o estado atual da preservação digital em arquivos municipais e distritais Portugueses. Urge propor metodologias que permitam estabelecer circuitos que assegurem o acesso no futuro. /Abstract: The increase of the digital information production in the last decades, the storage and access instability, the technological risks have conducted to the development of programmes and strategies focused in the born-digital objects' presentation issue. When technological support ends, documental circuits are interrupted, access is broken and data disappear. At the moment, the OAIS - an Open Archival Information System -, is the most suitable choice for a standardization, to develop presentation which allows a long term born-digital information access maintenance system. Its goal? To enlarge knowledge, understand and develop concepts for digital objects presentation and develop schemes circuits that ensure a long- term access, analise digital preservation measures taken by Portuguese local and district's archives. lt's urgent to develop strategies wich allow to establish circuits to ensure the access in the future.
27
Bradney, Jeremiah A. "Use of WebDAV to support a virtual file system in a coalition environment". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FBradney.pdf.
Testo completoAbstract (sommario):
Thesis (M.S. in Computer Science)--Naval Postgraduate School, June 2006.Thesis Advisor(s): Cynthia E. Irvine and Thuy D. Nguyen. "June 2006." Includes bibliographical references (p. 55-56). Also available in print.
28
Branschofsky, Margret, e Daniel Chudnov. "DSpace: Durable Digital Documents". ACM Press, 2002. http://hdl.handle.net/1721.1/26703.
Testo completoAbstract (sommario):
The DSpace system for long-term management of institutional scholarly research repositories is now in use at the MIT Libraries; we will demonstrate the system and provide more information about its design, use at MIT, and other potential uses.
29
Barwick, Joanna. "Where have all the games gone? : an exploratory study of digital game preservation". Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10222.
Testo completoAbstract (sommario):
It is 50 years since the development of the first computer game and digital games now have an unprecedented influence on our culture. An increasingly popular leisure activity, digital games are also permeating other aspects of society. They continue to influence computer technology through graphics, animation and social networking; an influence which is also being felt in other media, in particular film and television. They are a new art form and they are seen to be influential on children s learning and development. However, despite their pervasiveness and apparent importance within our society and culture, they are still largely ignored as part of our cultural heritage. Dismissed as disposable, entertainment products, they have not specifically been addressed in most of the academic literature on digital preservation which represents a serious omission in past research. This was justification for an exploratory study into the preservation of digital games and the aim of this study has been to explore the value of digital games, their significance in our culture, and the current status of their preservation. Investigating the relationship of games to culture; reviewing current preservation activities and drawing conclusions about the value of digital games and the significance of their preservation were the study s objectives. These have been achieved through interviews with key stakeholders the academic community, as potential users of collections; memory institutions, as potential keepers of collections; fan-based game preservation experts; and representatives from the games industry. In addition to this, case studies of key game preservation activities were explored. Through this research, a clearer picture of attitudes towards digital games and opinions on the need for preservation of these cultural products has been established. It has become apparent that there is a need for more coherent and collaborative efforts to ensure the longevity of these important aspects of digital heritage.
30
Das, Anup Kumar. "Open Access to Knowledge and Information: Scholarly Literature and Digital Library Initiatives - the South Asian Scenario". UNESCO, New Delhi, 2008. http://hdl.handle.net/10150/106335.
Testo completoAbstract (sommario):
The South Asia sub-region is now in the forefront of the Open Access movement within developing countries in the world, with India being the most prominent partner in terms of its successful Open Access and Digital Library initiatives. Institutional and policy frameworks in India also facilitate innovative solutions for increasing international visibility and accessibility of scholarly literature and documentary heritage in this country.
This publication has its genesis in the recommendations and proceedings of UNESCO-supported international conferences and workshops including the 4th International Conference of Asian Digital Libraries (ICADL2001, Bangalore); the International Conferences on Digital Libraries (ICDL2004 & ICDL2006, New Delhi); and the International Workshop on Greenstone Digital Library Software (2006, Kozhikode), where many information professionals of this sub-region demonstrated their Digital Library and Open Access initiatives. This book describes successful digital library and open access initiatives in the South Asia sub-region that are available in the forms of open courseware, open access journals, metadata harvesting services, national-level open access repositories and institutional repositories. This book may be considered an authoritative Source-book on Open Access development in this sub-region.
31
Wendt, Christopher Lee. "Culture mediation and sound preservation : methodologies in ethnomusicology". Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1285584.
Testo completoAbstract (sommario):
This thesis explores how the study of culture can benefit from Western technology by reviewing anthropological theoretical and methodological processes and issues concerning reciprocity between the ethnographers and research subjects. In this case I am exploring the process of digitizing and dissemination of 400 hours of Kiowa song recordings. New digitizing equipment has made audio preservation and access relatively easy and affordable. These issues are most critical to groups like the Kiowa whose songs I have already started digitizing. In this thesis I closely examine existing collaborative theory and methodology in order to demonstrate the balance that can and should be maintained when using technology to preserve traditional music. In general, applying audio technology to an anthropological problem can enhance or inhibit the ethnographic process. My thesis focuses on how audio technology can contribute to this process without inhibiting, complicating, or distorting the way ethnomusicologists, folklorists, and anthropologists practice go about recording sound.Department of Anthropology
32
Kimbrough, Julie L. "21ST CENTURY PRESERVATION CHALLENGES FOR LAW LIBRARIES". Thesis, School of Information and Library Science, 2004. http://hdl.handle.net/1901/34.
Testo completoAbstract (sommario):
This study examines the preservation practices of academic law libraries and argues that the survey results illustrate the growing gap between current preservation practices and new technology. The introduction to the study discusses challenges for libraries and cultural institutions in the digital age. In the second section, the paper analyzes U.S. copyright law and the effect of recent amendments on library preservation activities. The third section reports the results of a preservation practices survey. In the fourth section, the paper explores options for future law library preservation including institutional repositories and collaborative preservation efforts. The paper concludes that a new approach to scholarship and preservation is necessary to ensure that future generations have access to historically important legal literature.
33
Chilvers, Alison H. "Managing long-term access to digital data objects : a metadata approach". Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/7239.
Testo completoAbstract (sommario):
As society becomes increasingly reliant on information technology for data exchange and long-term data storage the need for a system of data management to document and provide access to the 'societal memory' is becoming imperative. An examination of both the literature and current 'best practice' underlines the absence to date of a proven universal conceptual basis to digital data preservation. The examination of differences in nature and sources of origin, between traditional 'print-based' and digital objects leads to a re-appraisal of current practices of data selection and preservation. The need to embrace past, present and future metadata developments in a rapidly changing environment is considered. Various hypotheses were formulated and supported regarding: the similarities and differences required in selection criteria for different types of Digital Data Objects (DDOs), the ability to define universal threshold standards for a framework of metadata for digital data preservation, and the role of selection criteria in such a framework. The research uses Soft Systems Methodology to investigate the potential of the metadata concept as the key to universal data management. Semi-structured interviews were conducted to explore the attitudes of information professionals in the United Kingdom towards the challenges facing information-dependent organisations attempting to preserve digital data over the long-term. In particular, the nature of DDOs being encountered by stakeholders, the reasons, policies, and procedures for preserving them, together with a range of specific issues such as: the role of metadata, access to, and rights management of DDOs. The societal need for selection to ensure efficient long-term access is considered. Drawing on - SSM modelling, this research develops a flexible, long-term management framework for digital data at a level higher than metadata, with selection as an essential component. The framework's conceptual feasibility has been examined from both financial and societal benefit perspectives, together with the recognition of constraints. The super-metadata framework provides a possible systematic approach to managing a wide range of digital data in a variety of formats, created/owned by a spectrum of information-dependent organisations.
34
Alemneh, Daniel Gelaw, Samantha Kelly Hastings e Cathy N. Hartman. "A Metadata Approach to Preservation of Digital Resources: The University of North Texas Libraries' Experience". University of Illinois at Chicago, 2002. http://hdl.handle.net/10150/106443.
Testo completoAbstract (sommario):
Preserving long-term access to digital information resources is one of the key challenges facing libraries and information centers today. The University of North Texas (UNT) Libraries has entered into partnership agreements with federal and state agencies to ensure permanent storage and public access to a variety of government information sources. As digital resource preservation encompasses a wide variety of interrelated activities, the UNT Libraries are taking a phased approach to ensure the long-term access to its digital resources. Formulation of preservation policy and creation of preservation metadata for electronic files and digital collections are among the most important steps. This paper discusses the issues related to digital resources preservation and demonstrates the role of preservation metadata in facilitating the preservation activities in general. In particular, it describes the efforts being made by the UNT libraries to ensure the long-term access and preservation of various digital information resources.
35
Runardotter, Mari. "Information technology, archives and archivists : an interacting trinity for long-term digital preservation". Licentiate thesis, Luleå : Luleå University of Technology, 2007. http://epubl.ltu.se/1402-1757/2007/08/.
Testo completo
36
Quisbert, Hugo. "On long-term digital preservation information systems : a framework and characteristics for development". Luleå : Department of Business Administration and Social Sciences, Luleå University of Technology, 2008. http://epubl.ltu.se/1402-1544/2008/77/.
Testo completo
37
Tansley, Robert, Mick Bass, David Stuve, Margret Branschofsky, Daniel Chudnov, Greg McClellan e MacKenzie Smith. "The DSpace Institutional Digital Repository System: Current Functionality". Institute of Electrical and Electronic Engineers, 2003. http://hdl.handle.net/1721.1/26705.
Testo completoAbstract (sommario):
In this paper we describe DSpaceâ¢, an open source system that acts as a repository for digital research and educational material produced by an organization or institution. DSpace was developed during two years’ collaboration between the Hewlett-Packard Company and MIT Libraries. The development team worked closely with MIT Libraries staff and early adopter faculty members to produce a âbreadth-first’ system, providing all of the basic features required by a digital repository service. As well as functioning as a live service, DSpace is intended as a base for extending repository functionality, particularly to address long-term preservation concerns. We describe the functionality of the current DSpace system, and briefly describe its technical architecture. We conclude with some remarks about the future development and operation of the DSpace system.
38
Corrêa, Amarílis Montagnolli Gomes. "Preservação digital: autenticidade e integridade de documentos em bibliotecas digitais de teses e dissertações". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/27/27151/tde-05112010-105831/.
Testo completoAbstract (sommario):
Os avanços tecnológicos impõem um grande desafio para a preservação do patrimônio digital. Além de garantir a longevidade e acessibilidade dos documentos, é necessário mantê-los autênticos e íntegros para que os usuários confiem neles como fonte de informação e objeto de estudo. Instituições guardiãs precisam assumir a preservação de suas coleções digitais e construir repositórios digitais confiáveis. Este trabalho recorre a um estudo exploratório para conhecer as práticas de preservação da autenticidade e integridade dos documentos que compõem os acervos das bibliotecas digitais de teses e dissertações das três universidades estaduais paulistas (Universidade de São Paulo - USP, Universidade Estadual Paulista Júlio Mesquita Filho - Unesp e Universidade Estadual de Campinas - Unicamp). As práticas dessas universidades demonstram a necessidade de melhorias para que elas sejam efetivamente capazes de assumir a responsabilidade de salvaguardar o patrimônio digital.Technological innovations raise a set of great challenges to the preservation of digital heritage. Besides assuring the longevity and accessibility of digital documents, it is also important to preserve their authenticity and integrity so one can trust and use digital documents as information source and study objects. Memory organizations must assume an active role in preserving their digital collections and building trusted digital repositories. This dissertation searches through an exploratory study to uncover the practices of the digital libraries of theses and dissertations of the three state universities of Sao Paulo (Universidade de São Paulo - USP, Universidade Estadual Paulista Júlio de Mesquita Filho - Unesp e Universidade Estadual de Campinas - Unicamp) for preserving the authenticity and integrity of their collections. Their preservation practices show that improvements need to be done so they can in fact take the responsibility of preserving digital heritage.
39
Glynn, Deborah. "The preservation and conservation of ink jet and electrophotographic printed materials". Thesis, Open University, 2001. http://oro.open.ac.uk/58177/.
Testo completoAbstract (sommario):
This research project has investigated the light fastness of ink jet and electrophotographic printed materials by the means of an extensive accelerated and natural ageing test programme. The effect of visible radiation of different wavebands on the deterioration of a selection of ink jet printed materials has also been assessed. The findings of the research indicate that all of the ink jet printed materials tested are sensitive to light and should not therefore, be put on permanent display. Most of the ink jet printed samples exhibited greater light sensitivity to the shorter wavelengths of the visible spectrum, than the longer wavelengths, with damage decreasing as wavelength increases. This relationship was not evident with the cyan and blue printed samples, which showed that their light sensitivity was determined by the spectral absorption characteristics of the printed patch. Some of the ink jet printed materials produced erratic fading rates on exposure to light. This phenomenon was attributed to either the occurrence of photochromism or the disintegration of the dye particles in the ink, but further testing needs to be conducted to gain a better understanding of this reaction. Other factors also influenced the light fastness of the ink jet materials, such as the type of paper employed for printing, ink concentration and ink combination. The electrophotographic printed materials were found to be more stable to light, although the yellow toner from some of the systems would show noticeable fading after approximately 65 to 325 years on permanent display (at 50 lux for eight hours per day). A range of basic conservation treatments was also been investigated and the results indicated that ink jet print materials are very sensitive to all forms of aqueous treatments. Finally, thermal/dark ageing has been performed on the digital printed papers employed in this investigation. The conclusion is that all of the papers are prone to yellowing in storage.
40
Waguespack, Travis. "Future-proofing the Past?: Digital History and Preservation in New Orleans after Hurricane Katrina". ScholarWorks@UNO, 2017. http://scholarworks.uno.edu/td/2393.
Testo completoAbstract (sommario):
Digital history has grown into a critical aspect of history scholarship and practice. The literature surrounding digital history is colored by its discussions of the possibilities and problems of digital history, both as an archiving tool and a method of increasing interaction with public history. This literature is also defined by its lack of answers to these questions, and lack of examinations of these possibilities in cases studies. By examining how three different New Orleans historical institutions have embraced digital history for preservation and public history in the wake of Hurricane Katrina, this thesis will illustrate how questions of preservation, access, and the impact of digital history on research are being answered by these institutions. The New Orleans historical institutions evaluated in this paper have used digital history to bolster their preservation in the face of natural disaster, and to foster increased interactivity and importance with the New Orleans community.
41
Frigo, Denise. "PRESERVAÇÃO DIGITAL: UM SUBSÍDIO PARA O CENTRO DE ARTES E LETRAS DA UFSM". Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/10999.
Testo completoAbstract (sommario):
This work aims to verify the application of digital preservation strategies in the documents produced and/or received in the Department of Education s Center for Arts and Letters from the Federal University of Santa Maria. Thus, the study was based on the query works, articles and related material on the subject of study. We also applied the technique of observation with the aid of a script, which was applied in all departments of the Center for Teaching Arts and Letters and the translation of data and information resulting from studies produced data sheets and graphs. From the analysis of surveys, reports and this observation, we have reached conclusions. One is that digital preservation is a constant risk control, in which the recognition that losses are inevitable develops the relevance of the ways to avoid them. Moreover, there is a consensus on the best strategies and methodologies to be employed in a digital preservation plan, since no measure is capable of meeting all requirements of all digital documents. However, the more the management of electronic documents is as standards, the more likely the sustainability of digital heritage. Although the knowledge and experience that exist today are not able to guarantee the durability of needed. These findings have allowed, at the end of the work, a handbook with recommendations for preservation of digital documents. It is expected therefore that the results obtained in the study can be considered as a reference for both the UFSM, and for other institutions who are interested in this work.Este trabalho tem por objetivo verificar a aplicação de estratégias de preservação digital nos documentos produzidos e/ou recebidos nos Departamentos de Ensino do Centro de Artes e Letras da Universidade Federal de Santa Maria. Para tanto, o trabalho foi baseado na consulta de obras, artigos e materiais afins sobre o tema de estudo. Também foi realizada a técnica de observação com o auxílio de um roteiro, o qual foi aplicado em todos os Departamentos de Ensino do Centro de Artes e Letras e a tradução dos dados e informações resultantes dos estudos originaram planilhas de dados e gráficos. A partir da análise dos levantamentos, dos relatórios e dessa observação direta, chegou-se a conclusões. Uma delas é que a preservação digital é um constante controle de riscos, no qual o reconhecimento de que perdas são inevitáveis desenvolve a relevância dos modos de evitá-las. Além disso, de que não existe consenso quanto às melhores estratégias e metodologias a serem empregadas num plano de preservação digital, pois nenhuma medida é capaz de atender todos os requisitos de todos os documentos digitais. No entanto, quanto mais a gestão de documentos eletrônicos estiver conforme padrões, maior probabilidade haverá da sustentabilidade do patrimônio digital. Embora o conhecimento e a experiência que existem hoje não sejam capazes de garantir a durabilidade dos documentos digitais, a adoção de planos de preservação digital, mesmo que básicos, se faz necessária. Essas constatações possibilitaram apresentar, ao final do trabalho, um manual com algumas recomendações para preservação de documentos digitais. Espera-se, portanto, que os resultados obtidos nesta pesquisa possam ser considerados como referencial, tanto para a UFSM, quanto para outras instituições que tenham interesse neste trabalho.
42
Lundstedt, Rickard. "Pappershantering leder till underskriftssjuka : En studie av myndigheters införande av digitala signaturer". Thesis, Uppsala universitet, Institutionen för ABM, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-386137.
Testo completoAbstract (sommario):
Digital signatures is a small and relatively new subject in digital preservation. There has been substantial research made in how to technically preserve a digital signature. However the research regarding the implementation and surrounding practices are relatively unexplored. This thesis analyses documentation from Swedish public sector about digital signature, develop models that express practices, and evaluate them against current normative frameworks within the field of digital preservation. Different government agencies were queried for documentation, which were analysed with Grounded Theory and Policy analysis. This generated a set of models which can be used to implement digital signatures into an organisation. Here we find models for managing user identities, selecting signatures on the basis of document type, researching legal questions, managing personal information and user rights, and for organisation of an implementation project. This is a two years master’s thesis in Archival Science.
43
Japzon, Andrea Copeland Agosto Denise E. "Exploration of the knowledge of and motivation for learning preservation practices for personal digital information /". Philadelphia, Pa. : Drexel University, 2009. http://hdl.handle.net/1860/3116.
Testo completo
44
Maharshi, Shivam. "Performance Measurement and Analysis of Transactional Web Archiving". Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78371.
Testo completoAbstract (sommario):
Web archiving is necessary to retain the history of the World Wide Web and to study its evolution. It is important for the cultural heritage community. Some organizations are legally obligated to capture and archive Web content. The advent of transactional Web archiving makes the archiving process more efficient, thereby aiding organizations to archive their Web content.
This study measures and analyzes the performance of transactional Web archiving systems. To conduct a detailed analysis, we construct a meaningful design space defined by the system specifications that determine the performance of these systems. SiteStory, a state-of-the-art transactional Web archiving system, and local archiving, an alternative archiving technique, are used in this research. We experimentally evaluate the performance of these systems using the Greek version of Wikipedia deployed on dedicated hardware on a private network. Our benchmarking results show that the local archiving technique uses a Web server’s resources more efficiently than SiteStory for one data point in our design space. Better performance than SiteStory in such scenarios makes our archiving solution favorable to use for transactional archiving. We also show that SiteStory does not impose any significant performance overhead on the Web server for the rest of the data points in our design space.Master of Science
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Teng, Fei. "Methodology and Architecture for Products Long Term Knowledge Preservation : A dynamic preservation approach and a multi-layer architecture". Thesis, Lyon 2, 2012. http://www.theses.fr/2012LYO20050/document.
Testo completoAbstract (sommario):
La préservation des informations numériques et des connaissances est l'un des objectifs principaux de la création et la gestion d'un système d'information dans une entreprise. Cette préservation est qualifiée de cruciale en termes de traçabilité, sécurité et durabilité.Ce travail de recherche s’inscrit dans le contexte de l’archivage numérique des connaissances. Notre recherche s’intéresse aux problématiques de la couverture et de l’adaptabilité des solutions logicielles pour la préservation des connaissances à long terme (Long Term Knowledge Retention, LTKR). On se propose donc de développer les concepts d’une architecture à bases de modèles, intégrée et évolutive pour l’archivage des informations numériques. Pour positionner nos travaux, nous avons synthétisé les besoins d’archivage à long termes, les travaux publiés, les plateformes et outils existants et ainsi ciblé les besoins manquants que nous allons développer dans ce travail de thèse.Dans une étape de spécification, l’analyse des concepts de gestion des connaissances pour l’archivage permet d’aboutir à une meilleure spécification des artefacts de connaissances (package d’information) à fournir à une plateforme d’archivage. Dans cette perspective, nous avons proposé une extension de la méthode CommonKADS. Le système d’archivage proposé étend le modèle de référence OAIS (Open Archival Information System) et ses divers implémentations (i.e. DSpace, Fedora repository, EPrints, etc). Nous avons développé des fonctionnalités supplémentaires pour étendre les concepts d’archivages statiques vers une architecture dynamique et évolutive à base de modèles. La finalité de ce travail est de définir les briques fonctionnelles d’un système d’archivage des informations numériques qui s’adapte aux besoins des entreprises et l’évolution de la complexité des données qu’elles gèrent. Nous avons finalement proposé une méthode de conservation dynamique et une architecture appelée MadPK (Multi-layer Architecture for Dynamic Preservation of Knowledge) pour préservation à long terme.L’ensemble des concepts proposés dans cette thèse sont développés et testés sur les environnements BPM/SOA suitesPreserving digital information is one of the objectives of the creation and management of information systems in a company. The long term preservation of information and knowledge becomes crucial in terms of safety and availability. Therefore, our research targets the Long Term Knowledge Retention (LTKR) and preservation in terms of traceability, reusability and security of digital information; and aims at proposing a methodology and an architecture for this purpose.Through analysis of existing works and projects, whose objective is long-term digital preservation, we have synthesized long term preservation common requirements and found out the gaps between existing requirements and the new requirements we have identified. Existing methodologies and tools for Knowledge Management (KM) are identified. We have extended the CommonKADS methodology in order to build connections between KM and digital preservation. The knowledge objects we have produced in a KM approach are thus better suited as inputs for the digital preservation platform.We have also studied the functional features of the existing digital preservation systems, and some main features to support a long term preservation approach. We have extended the Open Archival Information System (OAIS) reference model to establish a preservation platform, by adding specific features in order to fulfill the remaining requirements in the long term preservation area.We have finally proposed a dynamic preservation method and an architecture called MadPK (Multi-layer Architecture for Dynamic Preservation of Knowledge) for long term preservation, adapting Service Oriented Application (SOA) and Business Process Management (BPM) concepts. The proposed architecture provides dynamic features and enables us to have better interoperability between the KM approach and digital preservation approach/platform.The proposed design models of this thesis are implemented and tested within the environment of BPM/SOA suite
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Jin, Xinyu. "Trajectory Privacy Preservation in Mobile Wireless Sensor Networks". FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/983.
Testo completoAbstract (sommario):
In recent years, there has been an enormous growth of location-aware devices, such as GPS embedded cell phones, mobile sensors and radio-frequency identification tags. The age of combining sensing, processing and communication in one device, gives rise to a vast number of applications leading to endless possibilities and a realization of mobile Wireless Sensor Network (mWSN) applications. As computing, sensing and communication become more ubiquitous, trajectory privacy becomes a critical piece of information and an important factor for commercial success. While on the move, sensor nodes continuously transmit data streams of sensed values and spatiotemporal information, known as ``trajectory information". If adversaries can intercept this information, they can monitor the trajectory path and capture the location of the source node.
This research stems from the recognition that the wide applicability of mWSNs will remain elusive unless a trajectory privacy preservation mechanism is developed. The outcome seeks to lay a firm foundation in the field of trajectory privacy preservation in mWSNs against external and internal trajectory privacy attacks. First, to prevent external attacks, we particularly investigated a context-based trajectory privacy-aware routing protocol to prevent the eavesdropping attack. Traditional shortest-path oriented routing algorithms give adversaries the possibility to locate the target node in a certain area. We designed the novel privacy-aware routing phase and utilized the trajectory dissimilarity between mobile nodes to mislead adversaries about the location where the message started its journey. Second, to detect internal attacks, we developed a software-based attestation solution to detect compromised nodes. We created the dynamic attestation node chain among neighboring nodes to examine the memory checksum of suspicious nodes. The computation time for memory traversal had been improved compared to the previous work. Finally, we revisited the trust issue in trajectory privacy preservation mechanism designs. We used Bayesian game theory to model and analyze cooperative, selfish and malicious nodes' behaviors in trajectory privacy preservation activities.
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Ray, Philip Andrew. "Digital imaging for preservation and access of paper based colour maps, results of a survey". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq21121.pdf.
Testo completo
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Peyronnin, Edgar U. "The digital preservation of research at Colorado State University| A case study of three departments". Thesis, Colorado State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=3746127.
Testo completoAbstract (sommario):
Research workflows in higher education have converged onto digital formats. While the technology to store data has improved at an increasing pace, personal and organizational behaviors have not adapted as rapidly. The study sought ways to communicate digital preservation skills to researchers to improve the permanency of their research data. This study proposes three temporal contexts digital ? short-term, long-term and trans-generational. Study questions asked selected participants about how they manage their digital data. The study used Diffusion of Innovation theory concepts within an Activity Theory construct and the Open Archive Information System to model key areas of transformation. The key areas were determined by analysis of interviews, surveys and institutional data. The model provides a new way to understand the complex set of issues that can inhibit data preservation. The study used descriptive statistics and social network analysis to elaborate ways to transmit new data preservation attitudes and behaviors more effectively. In particular, the data management plan requirement for National Science Foundation grant submissions was found to be a potentially powerful motivator for a limited number of researchers. The study found that there is an opportunity for the institution to create group activities, such as workshops, that specifically include faculty with NSF grants and those who share other grant submission experience with them. The study also found that information technology staffs need to understand research problems from the researcher perspective better to overcome some trust issues. Finally, campus leadership needs to identify their role in addressing the issue for the long-term benefit of the institution. Strategic goals are an important first step. Building a robust digital preservation environment is an iterative process dependent on many perspectives. The goal of this research is to speed the process by developing a systems-level model for exposing problem areas.
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Andersson, Malin. "Digitalisering av biblioteksmaterial : En kvalitativ undersökning av åtta biblioteksanställdas attitydertill digitalisering". Thesis, Uppsala universitet, Institutionen för ABM, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-216782.
Testo completoAbstract (sommario):
This study aims to examine the views on digitization of eight respondents, all working at different libraryinstitutions in Sweden, and how their views are reflected in their library's digitization strategies. The poll wasconducted on the basis of Ingrid Mason's theory of information standards, their structure and sociopoliticalnature. The informantion standards are divided into three aspects, curatorial, semantic and technical, and theyaffect selection of, intellectual and physical access to the digitized material, which in the end is what constitutes the digital cultural heritage.The background to the study is that the Swedish library institutions in the current situation lacks a nationalstandard or a common strategy for the digitization of cultural heritage, while it is still implemented digitizationprojects at many library institutions. The method used is qualitative, structured interviews with open-ended questions.The study shows that one of the main motives behind the libraries' digitization projects is to make librarymaterials available in a new way, creating greater opportunities for the users to take advantage of the material.The library users are the ones who mainly control what is digitized, although aspects of preservation ismentioned. Furthermore, it appears that the respondents believe that digitization offers improved capabilities tosearch and learn more about the collections, but the actual work of image capture, the addition of metadata,presentation to users and long-term preservation is very complex.Views on what it is to be digitized, how the material should be selected and provided with metadata and howit should be presented to users is what creates the standards that libraries use when they digitize their materials,and digitization of library materials creates new conditions for new users to access and use library material.This is a two years master’s thesis in Archive, Library and Museum studies.
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Chakrvarty, Rupak, e Sukhdeep Kaur. "OpenCourseware: Learning Beyond Classroom". Twenty First Century Publications, Patiala, 2008. http://hdl.handle.net/10150/106151.
Testo completoAbstract (sommario):
OpenCourseWare is an innovative and bold idea. It aims to support learning and teaching programme significantly. Learning material contained in an OCW provides learners an opportunity to gain knowledge beyond their routine classroom environments. These are in the digital form which can be accessed online, thus breaking the barriers of time and distance. Indian academics can play a significant role in creating OCW materials for the students to propagate the teaching and learning process diluting the limitations of traditional educational setup and begin a new culture of "Learning Beyond Classroom". The present study aims to sensitize the teachers and learners about the potentials of the OCWs. It presents a proposal for creating an "Indian OCW Consortium" at different levels. Also discusses the challenges and issues in establishing such an OCW project.