Dissertations / Theses on the topic 'System quality'
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Mbenza, Alexandre Seth da Silva. "Quality Manager System (QMS)." Master's thesis, Instituto Politécnico de Setúbal. Escola Superior de Tecnologia de Setúbal, 2019. http://hdl.handle.net/10400.26/31330.
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Relatório de projeto do Mestrado em
Informática de GestãoA evolução tecnológica a nível da indústria e de metodologias utilizadas torna imperativo que as organizações adotem novos mecanismos e que estas novas tecnologias reflitam uma maior eficiência para as mesmas. Neste contexto, as organizações apostam cada vez mais na gestão da qualidade, encarando-o como uma ferramenta eficaz para fazer face à competitividade nacional e internacional. Não menosprezam toda a atividade relacionada com a inovação, mas consideram que é fundamental uma base com qualidade, permitindo assim atingir patamares superiores. O presente relatório visa abordar a metodologia e o processo de implementação das normas internacionais a nível geral. O conhecimento adquirido ao longo do percurso profissional no desenvolvimento de um software, bem como em outras competências intrínsecas, permitiram idealizar o desenvolvimento de uma plataforma capaz de gerir e implementar um sistema de gestão de qualidade. com o intuito de que este seja capaz de evoluir e de ser mantido de forma organizada. Com a implementação da ISO 27001, neste contexto, e após a análise de soluções existentes no mercado e da estrutura de implementação e certificação das normas internacionais, surgiu a necessidade de apresentar uma solução que vise facilitar este mesmo processo e que também ajude na manutenção de um sistema de gestão. Para este desenvolvimento foi necessário efetuar um levantamento de alguns sistemas que já existiam nesta área, sendo que as soluções encontradas no mercado não satisfaziam a necessidade de um sistema de gestão de qualidade. Apesar destas permitirem gerir este tipo de sistemas de qualidade, não estão focadas no processo de implementação e certificação das ISO. Deste modo, o QMS4.0 tem como objetivo minimizar esta lacuna identificada e facilitar o processo interno das empresas.
Technological developments in industry and in the methodologies used make it imperative for organizations to adopt new mechanisms and new technologies and to reflect on greater efficiency. In this context, organizations are increasingly focusing on quality management, seeing it as an effective tool to address national and international competitiveness. They do not underestimate all innovation-related activity, but considering that, a quality base is fundamental, thus allowing to reach higher levels. This report aims to address the methodology and process of implementation of international standards at the general level. The knowledge acquired along the professional career in software development as well as in other intrinsic skills allowed us to idealize the development of a platform capable of managing and implementing a quality management system in order to be able to evolve and to develop. be kept in an organized manner. With the implementation of ISO 27001 in this context, and after the analysis of existing solutions in the market and the structure of implementation and certification of international standards emerged the need to present a solution that aims to facilitate this same process and that also helps in maintaining a system management. For this development, it was necessary to make a survey of some systems that already existed in this area, and the solutions found in the market did not satisfy the need for a quality management system. Although these allow the management of such quality systems, they aren’t focused on the ISO implementation and certification process. This QMS4.0 aims to minimize this identified gap and facilitate this internal process of companies.
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Hodder, Carl Alexander. "Quality management system development." Thesis, University of Canterbury. Engineering Management, 2013. http://hdl.handle.net/10092/7443.
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With Chiptech’s current growth rate and size it has become necessary to develop a Quality Management System to enable repeatability, meet customer demands, and protect Chiptech from staff turnover. ISO 9001 was identified as a base for development, with the imperative that the system identified and developed must deliver value for Chiptech. Several frameworks were investigated, along with journal articles and discussions with industry members in order to determine the aspects that would deliver value, and determine the key success factors. Two factors were identified as critical: employee involvement, and the utilisation of metrics – both of which were leveraged for the project results and recommendations.
The systems developed have already proved they offer benefits, however, in order to maintain performance Chiptech must a) keep evaluating the measured results, b) ensure that quality forms an integral part of the organisational culture and, c) continue the systematic approach of continual improvement.
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Hawkesford, M. O. J. "High-quality audio system." Thesis, Aston University, 2007. http://publications.aston.ac.uk/21777/.
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Toulson, Edwin Robert. "Sugar beet quality measuring system." Thesis, Anglia Ruskin University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407677.
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Choi, Daeyoung. "Participatory Air Quality Monitoring System." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276047032.
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Korn, Alexandra. "Information System Quality Assessment Methods." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-193230.
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This thesis explores challenging topic of information system quality assessment and mainly process assessment. In this work the term Information System Quality is defined as well as different approaches in a quality definition for different domains of information systems are outlined. Main methods of process assessment are overviewed and their relationships are described. Process assessment methods are divided into two categories: ISO standards and best practices. The main objective of this work is application of gained theoretical knowledge in process assessment with CobiT 4.1 and CobiT 5.0 frameworks, and comparing results. The objective was achieved through consultation with processes owner and the completed questionnaires filled in by management of OnLine S.r.l. Additionally targeted level of capability in CobiT 5.0 is compared with actual, achieved level.
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Edlund, Sara, and Andreas Lövquist. "The role of system administrators in information systems success." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-176138.
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Limited research has been conducted on how system administrators actually can affect information systems (IS) after they have been implemented; hence, this study examines how system administrators can affect IS success in an implemented IS. The study identified a system administrator´s affect on the three IS quality dimensions in the DeLone and McLean IS success model. The empirical findings was based on a single case study where the data was collected through interviews with the system administrator and the system assistants, but also through a questionnaire answered by the users of the IS. The empirical findings suggested that the system administrator can affect IS success through the IS quality dimensions both directly and indirectly. The system administrator´s affect on IS success proved to be highly dependent on the external system vendor and the structure of the internal support unit.
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Chetty, Uthamaganthan Perumal. "The effect of integrated quality management system on educator efficacy." Thesis, University of Zululand, 2013. http://hdl.handle.net/10530/1278.
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Submitted in fulfilment of the requirements for the degree Doctor of Education in the
Department of Educational Psychology and Special Education of the Faculty of Education
at the University of Zululand, South Africa, 2013.Integrated Quality Management System (IQMS) is an appraisal system of the KwaZulu-Natal Department of Education. The appraisal system intended to develop educators on an on-going basis. The primary aim of this investigation was to establish the effect that IQMS has on educator efficacy. As an introduction to the study, the requirements for educator efficacy were reviewed. In so doing, the various characteristics for effective teaching-learning situation and of an “ideal” educator were highlighted. The didactical behaviour of successful educators was also in focus. The requirements for educator efficacy and the effects of IQMS on educator efficacy were investigated using a literature and empirical study. The study revealed that IQMS has a positive effect on educator performances. For the purposes of the empirical investigation, a structured questionnaire was used. Four hundred and six (406) questionnaires were completed by educators from the primary and secondary schools from the Pinetown District in the Ethekwini Region of KZN and these questionnaires were analysed. The data was processed and interpreted using descriptive and inferential statistics.
University of Zululand
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Chowdhury, Abdullahi. "Enhancing service quality and reliability in intelligent traffic system." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/173723.
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Intelligent Traffic Systems (ITS) can manage on-road traffic efficiently based on real-time traffic conditions, reduce delay at the intersections, and maintain the safety of the road users. However, emergency vehicles still struggle to meet their targeted response time, and an ITS is vulnerable to various types of attacks, including cyberattacks. To address these issues, in this dissertation, we introduce three techniques that enhance the service quality and reliability of an ITS. First, an innovative Emergency Vehicle Priority System (EVPS) is presented to assist an Emergency Vehicle (EV) in attending the incident place faster. Our proposed EVPS determines the proper priority codes of EV based on the type of incidents. After priority code generation, EVPS selects the number of traffic signals needed to be turned green considering the impact on other vehicles gathered in the relevant adjacent cells. Second, for improving reliability, an Intrusion Detection System for traffic signals is proposed for the first time, which leverages traffic and signal characteristics such as the flow rate, vehicle speed, and signal phase time. Shannon’s entropy is used to calculate the uncertainty associated with the likelihood of particular evidence and Dempster-Shafer (DS) decision theory is used to fuse the evidential information. Finally, to improve the reliability of a future ITS, we introduce a model that assesses the trust level of four major On-Board Units (OBU) of a self-driving car along with Global Positioning System (GPS) data and safety messages. Both subjective logic (DS theory) and CertainLogic are used to develop the theoretical underpinning for estimating the trust value of a self-driving car by fusing the trust value of four OBU components, GPS data and safety messages. For evaluation and validation purposes, a popular and widely used traffic simulation package, namely Simulation of Urban Mobility (SUMO), is used to develop the simulation platform using a real map of Melbourne CBD. The relevant historical real data taken from the VicRoads website were used to inject the traffic flow and density in the simulation model. We evaluated the performance of our proposed techniques considering different traffic and signal characteristics such as occupancy rate, flow rate, phase time, and vehicle speed under many realistic scenarios. The simulation result shows the potential efficacy of our proposed techniques for all selected scenarios.Doctor of Philosophy
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Saroso, Dana Santoso. "Product quality improvement : a system approach /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17433.pdf.
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Peng, Yan. "Accounting system quality and CEO compensation /." view abstract or download file of text, 2005. http://wwwlib.umi.com/cr/uoregon/fullcit?p3181120.
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Thesis (Ph. D.)--University of Oregon, 2005.Typescript. Includes vita and abstract. Includes bibliographical references (leaves 69-71). Also available for download via the World Wide Web; free to University of Oregon users.
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Karapetrovic, Stanislav. "Quality assurance in the university system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0014/NQ31997.pdf.
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張金慶 and Kam-hing Cheung. "Quality training: an expert system application." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31267038.
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Wort, Ralph George. "Integrated information system for quality control." Thesis, University of the West of England, Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283909.
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Villegas, Miguel E. "A quality management system complexity model." Thesis, Birmingham City University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433968.
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Aleti, Poojitha. "Sustainable Ambient Air Quality Monitoring System." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2226.
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Deterioration of air quality is a growing concern in the world. Air pollution causes serious health problems and also can sometimes result in death. In order to assess air quality, long term and continuous monitoring of pollutant levels in ambient air are needed, such monitoring is often expensive, cumbersome, and resource intensive and so the monitoring programs often fail to succeed.
This research focused on designing an ambient air monitoring system by integrating (1) low-cost sensor with a battery, (2) repurposed materials to fabricate all-weather housing for air monitors, and (3) electronics needed to download the data to an on-site secure digital (SD) card, and to push the data wirelessly to the server. This monitoring system was tested at the selected locations in Harvey and Marrero Wastewater treatment plants (WWTPs) by monitoring hydrogen sulfide (H2S) levels. Preliminary analysis was done for few days and also, the results were analyzed.
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Alshehri, Ayman Rashed. "Quality management system for building maintenance." Thesis, Heriot-Watt University, 2016. http://hdl.handle.net/10399/3092.
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Quality management (QM) is viewed as concepts, principles, or practices within which prescriptive views and empirical facts play roles in constructing and operating the industry to improve the performance. The growth of Building Maintenance (BM) as a proportion of the construction industry’s output has led to increasing awareness of the need to manage buildings effectively. In the Kingdom of Saudi Arabia, the cost of construction projects in Riyadh City 2014 is around SR 181 billion, and that figure does include the operation and maintenance projects that cost SR 10 billion in 2014. However, this segment of the industry faces several challenges in the Kingdom. This work draws on five Quality Management Concepts (QMCs) (Total Quality Management, Six Sigma, Lean Management, Lean Six Sigma, and ISO 9001) to underpin the research principles, methodology, and implementation. From this research, The primary aim of this research is to investigate the Quality Management System (QMS) required to improve Saudi public Building Maintenance (BM) practices through the implementation of the most suitable and effective Quality Management Concepts (QMCs). The nature of BM is examined in detail in the literature review, to ensure the subsequent collection of appropriate knowledge and information from the empirical interviews and focus group discussions. The first qualitative exercise relates to interviews conducted to collect information to examine the current BM processes in public departments, with a view to ascertaining underlying problems and assess awareness and implementation of QMCs. This was followed by a second qualitative technique, the focus group, intended to explore the most suitable and effective QMCs for implementation in BM departments. After that, the QMS was developed and then validated by focus group method a second time. In this study, thematic analysis is used for both qualitative methods. The most significant problems facing the public BM sector were identified and then categorised into three major groups: (1) top management problems, (2) human resource problems, and (3) technical problems. The main results of the study emphasise that ISO 9001 is the most suitable foundation for quality management of BM and it is found to be an effective baseline on which the BM process can be improved. It was established that there should be specific guidelines for QM in BM (quality management system) which have been developed in this research. The QMS is customised to provide the information required to improve current practices in BM industry. It was confirmed by the evaluation and validation that the developed quality management system can generate positive outcomes, lead to better management, clear responsibilities and improve communication.
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Franzén, Jonathan, Eric Jonsson, Marcus Nordstrom, and William Sandkvist. "Logging System for Air Quality Mapping." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-413080.
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An urgent issue in today’s society is the large emissions of air pollutants and CO2. Aside from being extremely harmful to the environment, these emissions can also be particularly unhealthy for inhabitants of metropolitan areas. To help combat this issue, a system for measuring air quality over larger areas is required. In this project a system for mobile air quality mapping was developed, based on an earlier prototype. The system is able to log CO2 levels over large areas, and communicate the measurements to a server when connected to WiFi. The measurements are thereafter inserted into a database, where measurements of several sensors can be stored and accessed. The final version resulted in a system efficiently mapping and storing measurements in a database. This is done whenever a WiFi connection is available for a sensor tracker module. While connected, the module sends measurements to the server in real-time. When a tracker module initiates a WiFi connection, it also uploads any measurements taken while the module was offline. While the system lacks some aspects of scalability and easy configuration, the developed system is largely automated when configured.Ett akut problem i dagens samhälle är stora utsläpp av luftföroreningar och CO2. Detta är inte bara extremt dåligt för miljön, utan kan också vara speciellt ohälsosamt för invånare i storstadsområden. För att bättre kunna lösa detta problem behövs ett system som kan mäta luftkvalitet över större områden. I detta projekt utvecklades ett system, som var baserat på en tidigare prototyp, för mobil kartläggning av luftkvalitet. Systemet kan logga, spara och kartlägga CO2. Med hjälp av GPS och WiFi-kommunikation kan systemet logga data över ett större område, jämfört med tidigare lösningar som använde sig av mätstationer på fasta platser. System kan logga CO2-nivåer över stora ytor och kommunicera mätvärdena till en server när enheten är ansluten till WiFi. Mätvärdena förs därefter in i databasen, där mätvärden från flera sensorer kan lagras och hämtas. Den slutgiltiga versionen resulterade i ett system som effectivt mappar och lagrar mätvärden i en databas. Detta görs vid de tillfällen en WiFi-anslutning finns tillängling för en sensor tracker modul. Medans modulen är ansluten skickar den mätvärden till en server i realtid. När en tracker modul initierar en WiFi-anslutning laddar den även upp de mätvärden som tagits medan modulen varit offline. Medans systemet saknar vissa aspekter av skalbarhet och enkel konfiguration, så är det utvecklade systemet till stor del automatiserat efter konfiguration.
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Schultz, Richard Wilhelm. "Quality assurance during system/product development." Master's thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/8378.
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Bibliography: leaves 85-86.This thesis discusses the need for and requirements of quality assurance during development of systems and products. Quality Assurance is necessary during the acquisition programme to verify that the deliverable end products and systems satisfy the requirements of the user or client. No proper guidance is available to the industry on the subject of Quality Assurance during development. The objective of this thesis is thus to develop a Quality Assurance model for use as a guide for quality assurance planning on each project.
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Cheung, Kam-hing. "Quality training : an expert system application /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18380499.
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Parsons, Antony Cozart. "Automatic location of transient power quality disturbances /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.
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Dooley, Paul. "An Empirical Development of Critical Value Factors for System Quality and Information Quality in Business Intelligence Systems Implementations." NSUWorks, 2015. http://nsuworks.nova.edu/gscis_etd/48.
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Business intelligence (BI) systems have been widely recognized as a leading technology for many years. However, despite the high priority and importance placed on BI, there has been a significant lack of BI system implementation (BISI) success. BI systems are not considered to be conventional information systems (IS) and often rely on the integration of a complex information infrastructure. Consequently, the degree of information quality (IQ) and system quality (SQ) have not met expectations for BISI success.
This study was designed to determine how an organization may gain benefits in the context of BISI by uncovering the antecedents and critical value factors (CVFs) of SQ and IQ necessary to derive greater BISI success. In phase one, a list of BISI SQ and IQ characteristics were collected through literature discovery and an open-ended questionnaire delivered to a group of BI user experts. The collected items were grouped and categorized based on their similarities. In phase two of the study 257 survey responses were collected from BI users to measure the level of importance, i.e. value, they placed on SQ and IQ characteristics. Exploratory factor analysis (EFA) via principal component analysis (PCA) was then used to uncover the CVFs of SQ and IQ that influence BISI success. Two highly reliable CVFs for SQ of BISI with a cumulative variance of nearly 62% and three highly reliable CVFs for IQ of BISI with a cumulative variance of over 75% were subsequently identified. In phase three of the study, an extended conceptual model for IS success was validated to assess the uncovered CVFs of SQ and IQ, as well as their influence on the constructs of perceived SQ of BISI and perceived IQ of BISI. Employing partial least squares (PLS), a subset of structural equation modeling (SEM), the research model was then used to assess the dimensions of perceived SQ of BISI and perceived IQ of BISI as antecedents of the constructs of perceived user systems satisfaction and perceived user information satisfaction from BISI. The crossover effects of perceived user systems and information satisfaction from BISI were also analyzed. The results identified two SQ CVFs of BISI (integration flexibility SQ and reliability SQ) that demonstrated a significant positive impact on perceived SQ for BISI as well as three IQ CVFs of BISI (representation IQ, intrinsic IQ, and accessibility IQ) that had a significant positive impact on perceived IQ of BISI. The constructs of perceived user systems satisfaction and perceived user information satisfaction from BISI had explained variances of R2 = .576 and .589 respectively. Additionally, 12 items of SQ for BISI and 14 items of IQ for BISI were identified as possessing high reliability.
This study makes two important contributions to the IS body of knowledge. First, it investigated the universal set of antecedents of SQ and IQ to establish the CVFs of IQ (integration flexibility SQ and reliability SQ) as well as the CVFs of IQ (representation IQ, intrinsic IQ, and accessibility IQ) for BISI success. Second, this study evaluated the crossover effects of system and information satisfaction in BISI success highlighting the importance that BI users place on the need to distinguish between the BI system, the IQ of the output produced, and the influence of IQ on perceived user system satisfaction from BISI. This study benefits stakeholders by focusing on what is important to BISI success and identifies those areas that are most likely to lead to better use of scarce resources while providing the greatest benefits.
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Wang, Teng. "Water Quality Monitoring System based on WSN." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107735.
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With the growth of economy in recent years, the water quality monitoring becomes a critical issue about water pollution. Water Quality Monitoring has a big influence on the aquaculture management, waste water treatment, drinking water and some other applications. There is a trend to build a wireless sensor network system for water quality monitoring. This system detects pH, conductivity, dissolved oxygen, turbidity, temperature, ORP (Oxidation-Reduction Potential), BOD (Biochemical Oxygen Demand), Flow and etc. Some important electrochemical parameters of water quality should also be detected, like Ca2+, Mg2+, Cl2, Cl-, NO3-, NH3+, CO2/CO32-, F-, BF4-, K+, Na+. The water quality monitoring system should guarantee the accuracy, security and reliability. In this paper, I research an integrated system model for water quality monitoring system which is based on chlorine analyzer, turbidity meter, pH meter, conductivity meter, dissolved oxygen meter and so on. I analyze the water quality monitoring program according to different physical environment.
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Bogaerts, Steven A. "Rank quality for evaluating CCBR system performance." [Bloomington, Ind.] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3274926.
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Thesis (Ph.D.)--Indiana University, Dept. of Computer Science, 2007.Source: Dissertation Abstracts International, Volume: 68-07, Section: B, page: 4582. Adviser: David Leake. Title from dissertation home page (viewed Apr. 22, 2008).
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Falk, Pia, and Emil Olsson. "Implementation of an Image Quality Rating System." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93491.
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As the digital camera surveillance business expands, much eort is put into optimizing the quality of the captured images. There is a need for a image quality rating system when specifying and developing new cameras. This system can be used to compare new technology to old cameras as well as competitor cameras in order to locate the dierences. The rating should be based on technical measurements and resemble human perception of image quality. This thesis has focused on measuring and rating resolution and noise since these are important parts of perceived image quality. Images of a predetermined target (both stationary and rotating) were captured by the camera in three illuminations. An application was developed to facilitate input of the captured images as well as performing the required calculations. The application then returns one calculated image quality rating per illumination.
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Markevičiūtė, Lina. "Information factors of quality management system maturity." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20091024_103844-64497.
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Successful quality management systems proceeding and continual development, that determine systems maturity, is not self-contained phenomenon. Persuading for quality management systems maturity, organization must create suitable conditions for that. Organization must determine maturity factors and tend for these factors suitable impact to quality management system. Information factors are ascribable to factors, that determinate quality management systems maturity. But still now, the whole of information factors is not institutionalized sustaining by information since theoretical base. Characteristics of these information factors are defined insufficiently too. Defined uncertainty direct, why organizations can’t create suitable conditions for quality management systems maturity. These problems incite the research purpose – indicate the whole of informational factors, that impact quality management systems maturity, and clarify theirs influence to system development.Sėkmingas kokybės vadybos sistemos funkcionavimas, nuolatinis sistemos tobulinimas, sąlygojantis sistemos brandą, nėra savaiminis reiškinys. Siekdamos kokybės vadybos sistemos brandos organizacijos privalo sukuti tam tinkamas sąlygas: identifikuoti brandos veiksnius ir rūpintis jų tinkama įtaka. Informaciniai veiksniai yra priskiriami veiksnių, lemiančių kokybės vadybos sistemos brandą, kategorijai. Tačiau iki šiol, informacinių veiksnių visuma, įtakojanti kokybės vadybos sistemų brandą, nėra identifikuota remiantis informacijos mokslų teorine baze. Nepakankamai apibrėžtos ir veiksnių charakteristikos, užtikrinančios tinkamą įtaką kokybės vadybos sistemoms. Per didelė entropija šiais klausimais lemia tai, kad organizacijos nesugeba sudaryti tinkamų sąlygų savo kokybės vadybos sistemų brandai. Įvardintos problemos skatina formuluoti tokį mokslinio tyrimo tikslą – identifikuoti kokybės vadybos sistemos brandos informacinių veiksnių visumą, išaiškinant jų įtaką sistemos brandai.
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Hyden, Eoin Andrew. "Operating system support for quality of service." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319971.
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Line, S. A. "A conceptual model of quality system auditing." Thesis, Cranfield University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333535.
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Doran, Edward Joseph. "Implementation of BS 5750 quality management system." Thesis, University of Salford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241954.
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Hardwick, John C. (John Clark). "A high quality speech analysis/synthesis system." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/14901.
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Кулік, Євгенія Сергіївна, Евгения Сергеевна Кулик, and Yevheniia Serhiivna Kulik. "System of quality assessment of educational process." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46813.
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Akande, Stephen Oluwashola. "Development of quality system for additive manufacturing." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/2831.
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Selective laser sintering (SLS) and fused filament fabrication (FFF) are significant methods in additive manufacturing (AM). As AM is increasingly being used to manufacture functional parts, there is a need to have quality systems for AM process, to ensure repeatability of properties or quality of part made by the process. The primary aim of this research is to develop quality systems for SLS and FFF processes of AM. In order to develop a quality system for SLS process based on defining a minimum set of tests to qualify a build, two SLS materials of Nylon 11 and Nylon 12 were investigated. Melt flow index (MFI), impact, tensile and flexural tests were assessed, along with density, surface roughness, dimensional measurements and scanning electron microscopic (SEM). Two benchmark parts were designed for manufacture to track changes in key parameters from one build to another, and tests on this validated against ISO standards. Similarly, to develop a quality system for FFF process, the various mechanical properties of tensile, flexural properties, notched and un-notched impact strengths and sample mass of specimens made from biodegradable polylatic acid (PLA) FFF material were investigated. In order to identify the tests that can be most sensitive to changes in processing conditions and differences in interlayer bond strength which affect the structural integrity of part made by FFF. Analysis of variance (ANOVA) was used to compare the significance of the effect of processing parameters on the mechanical properties, while optical microscopy was also used to investigate failure pattern. A novel low cost method for evaluating fracture strength of FFF made parts was also developed for low cost FFF machines. Benchmark specimens and a low cost test jig were designed and fabricated to track changes in key quality characteristics of FFF made parts from one build to another. Tests conducted on the test jig were validated against those conducted on standard machine. Very good correlation was observed between them. On the basis of the data from experiments, impact strength was adopted as a key test of interlayer bond strengths which determines overall structural strengths of the materials for both SLS and FFF AM processes. A positive correlation exist between density and modulus of SLS parts, and also between sample mass and modulus of FFF made parts. ii This led to the impact strength and density/mass of parts being adopted as key indicators of mechanical integrity, with MFI a good indicator of input material quality, and dimensional accuracy of machine calibration. These tests were thus adopted as a quality assurance system in the respective developed quality system for AM processes of SLS and FFF. If the quality system is implemented, repeatability of properties can be achieved and the quality of product assured.
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Ghoudi, Kilani. "Multivariate non-parametric quality control statistics." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5658.
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During the startup phase of a production process while statistics on the product quality are being collected it is useful to establish that the process is under control. Small samples $\{ n\sb{i}\} \sbsp{i=1}{q}$ are taken periodically for $q$ periods. We shall assume each measurement is bivariate. A process is under control or on-target if all the observations are deemed to be independent and identically distributed and moreover the distribution of each observation is a product distribution. This would be the case if each coordinate of an observation is a nominal value plus noise. Let $F\sp{i}$ represent the empirical distribution function of the $i\sp{-th}$ sample. Let $\overline {F}$ represent the empirical distribution function of all observations. Following Lehman (1951) we propose statistics of the form$${\sum\limits\sbsp{i = 1}{q}}\int\sbsp{-\infty}{\infty}\int\sbsp{-\infty}{\infty}(F\sp{i}(s,t) - \overline{F}(s)\overline{F}(t))\sp2 d\overline{F}(s,t)\eqno(1)$$The emphasis there, however, is on the case where $n\sb{i}\ \to\ \infty$ while $q$ stayed fixed. Here we study the following family of statistics$$S\sb{q}={\sum\limits\sbsp{i = 1}{q}}\int\sbsp{-\infty}{\infty}\int\sbsp{-\infty}{\infty}k\sb{q}(n, i, F\sp{i}(s,t),\overline{F}(s)\overline{F}(t))n\sb{i}dF\sp{i}(s,t)\eqno(2)$$in the above quality control situation, where $q\to\infty$ while $n\sb{i}$ stays fixed. (Abstract shortened by UMI.)
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Wang, Min. "Pattern recognition methodology for network-based diagnostics of power quality problems /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6099.
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Heinrich, Robert [Verfasser], and Barbara [Akademischer Betreuer] Paech. "Aligning Business Process Quality and Information System Quality / Robert Heinrich ; Betreuer: Barbara Paech." Heidelberg : Universitätsbibliothek Heidelberg, 2013. http://d-nb.info/1177810654/34.
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BATISTA, Maria da Conceição Moraes. "Schema quality analysis in a data integration system." Universidade Federal de Pernambuco, 2008. https://repositorio.ufpe.br/handle/123456789/1335.
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Previous issue date: 2008Conselho Nacional de Desenvolvimento Científico e Tecnológico
Qualidade da Informação (QI) tem se tornado um aspecto crítico nas organizações e em pesquisas da área de sistemas de informação. Informações de pouca qualidade podem ter impactos negativos na efetividade de uma organização. O crescimento do uso de data warehouses e acesso direto de gerentes e usários a informações obtidas de várias fontes contribuíram para o crescimento da necessidade de qualidade nas informações das empresas. A noção de QI em sistemas de informação emergiu nos últimos e vem sendo alvo de interesse cada vez maior. Não existe ainda um acordo comum acerca de uma definição da QI. Apenas um consenso de que tratase de um conceito de adequação ao uso . A informação é considerada apropriada para o uso dentro da perspectiva dos requisitos e necessidades de um usuário, ou seja, a qualidade da informação depende de sua utilidade. O acesso integrado a informações distribuídas em múltiplas fontes de dados heterogêneas, distribuídas e autônomas é um problema importante a ser resolvido em muitos domínios de aplicações. Tipicamente existem algumas formas de se obter respostas a consultas globais, sobre dados em fontes diferentes com diferentes combinações. entretanto é bastante custoso obter todas as respostas possíveis. Enquanto muita pesquisa tem sido feita em relação a processamento de consultas e seleção de planos com critérios de custo, pouco se conhece com relação ao problema de incorporar aspectos de QI em esquemas globais de sistemas de integração de dados. Neste trabalho, nós propomos a análise da QI em um sistema de integração de dados, mais especificamente a qualidade dos esquemas do sistema. O nosso principal objetivo é melhorar a qualidade da execução das consultas. Nossa proposta baseiasse na hipótese de que uma alternativa de otimizar o processamento de consultas seria a construção de esquemas com altos escores de QI. Assim, o foco deste trabalho está no desenvolvimento de mecanismos de análise da QI voltados esquemas de integração de dados, especialmente o esquema global. Inicialmente, nós construímos uma lista de critérios de QI e relacionamos estes critérios com os elementos existentes em sistemas de integração de dados. Em seguida, direcionamos o foco para o esquema integrado e especificamos formalmente critérios de qualidade de esquemas minimalidade, completude do esquema e consistência de tipo. Também especificamos um algoritmo de execução de ajustes de forma a melhorar a minimalidade e algoritmos para medir a consistência de tipo nos esquemas. Com esses experimentos conseguimos mostrar que o tempo de execução de uma consulta em um sistema de integração de dados pode diminuir se esta consulta for submetida a um esquema com escores altos de minimalidade e consistência de tipo
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徐美貞 and Mei-ching Chui. "Implementation of a quality system in Hong Kong telecom." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31266010.
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Hogan, Paul Anthony. "A knowledge-based system for automated fault analysis of hydraulic systems." Thesis, University of Bath, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332776.
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Lin, Paul Hong-Yi. "Data quality enhancement in oil reservoir operations : an application of IPMAP." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76569.
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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2012.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 70-71).
This thesis presents a study of data quality enhancement opportunities in upstream oil and gas industry. Information Product MAP (IPMAP) methodology is used in reservoir pressure and reservoir simulation data, to propose data quality recommendations for the company under study. In particular, a new 4-step methodology for examining data quality for reservoir pressure management systems is proposed: 1. Trace the data flow and draw the IPMAP; 2. Highlight the cross-system and organizational boundaries; 3. Select data quality analytical questions based on data quality literature review; 4. Apply the analytical questions at each boundary and document the results. This original methodology is applied to the three management systems to collect a pressure survey: using a spreadsheet, a standardized database and an automated database. IPMAPs are drawn to each of these three systems and cross-system and organizational boundaries are highlighted. Next, data quality systematic questions are applied. As a result, three data quality problems are identified and documented: well identifier number, well bore data and reservoir datum. The second experiment investigates the data quality issues in the scope of reservoir simulation and forecasting. A high-level IPMAP and a process flow on reservoir simulation and forecasting are generated. The next section further elaborates on the first high level process flow and drills into the process flow for simulation. The analytical data quality questions are raised to the second simulation process flow and limited findings were documented. This thesis concludes with lessons learned and directions for future research.
by Paul Hong-Yi Lin.
S.M.in Engineering and Management
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Dedekli, N. Birkan Supervisor :. Yanmaz Melih. "Implementation of quality management system in an irrigation project : a case study." Ankara : METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605763/index.pdf.
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Olamiji, Oluwatoyin. "Implementation of an electronic quality management system document management module to support reconfiguration of a district general hospital pathology department quality management system." Thesis, University of Portsmouth, 2016. https://researchportal.port.ac.uk/portal/en/theses/implementation-of-an-electronic-quality-management-system-document-management-module-to-support-reconfiguration-of-a-district-general-hospital-pathology-department-quality-management-system(13ceffe9-850b-4c9c-858e-a3a31f101f95).html.
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In order to achieve accreditation for their services, pathology departments must meet international recognised standards and comply with national guidelines, issued by accrediting bodies such as Clinical Pathology Accreditation (United Kingdom Accreditation Service), the Medicines and Healthcare products Regulatory Agency and the Human Tissue Authority in United Kingdom. Objectives: An evaluation of existing Quality Management System (QMS) and implementation of a quality standard and a centralised electronic document management software (Q-pulse) in a pathology department of a district hospital. Method: A service evaluation utilising an adapted version of the Context, Input, Process, and Product model, (with the addition of the implementation stage). This consisted of context evaluation (an evaluation of the department’s decentralised QMS), input evaluation (an assessment of the various types of electronic document management system (EDMS), implementation (the implementation of a centralised QMS and EDMS), progress evaluation (monitoring, documentation and assessment of the progress of the QMS) and finally impact evaluation (measuring the impact of the newly implemented system). Data collection included quality audits, non-participant observation and qualitative interviews. The implementation strategies involved technical support training and feedbacks. Results: The implementation of a continuous QMS and EDMS within the department, using the adapted CIPP model, increased the involvement of all staff in quality matters. It enabled the department to improve quality control processes, procedures and performance. Staff and quality teams now meet regularly and multidisciplinary workings groups have been put in place to continual improve the quality matters. The level of compliance and awareness to standards and guidelines has increased through education and training of staff in within the QMS, and there is an increase in top level management involvement in quality activities within the department. As a result of this evidence of compliance, the department’s Quality management system, was accorded, an unconditional accreditation, by the accrediting bodies. (Clinical Pathology Accreditation (United Kingdom Accreditation Service), the Medicines and Healthcare products Regulatory Agency). Conclusion: The quality management system is functioning in all the departments. All staff involved in the evaluation processes, judged it to be useful for them and the department. Further research is required to establish the longevity of the implemented products and other modules within Q-Pulse.
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Smith, Jill Yvonne. "Communication Quality in Information Systems Development: The Effect of Computer-Mediated Communication on Task-Oriented Problem Solving." Thesis, North Texas State University, 1986. https://digital.library.unt.edu/ark:/67531/metadc331600/.
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The problem motivating this research is that ineffective communication may hamper systems development efforts. Specifically germane to this study are development efforts characterized as task-oriented, and which require information-sharing and problem-solving activities. This research problem motivated an analysis of the communication process and lead to the development of a temporal framework that delineates variables associated with task-oriented, end user/systems analyst communication interactions. Several variables within this framework are depicted in two theoretical models. The first model shows the theoretical relationship between an independent variable, communication mode (represented by asynchronous computer conferencing and face-to-face conferencing), and five dependent variables: (1) the amount of information shared, (2) the significance of the information shared, (3) the comprehensiveness of the information shared, (4) the perception of progress toward the goal, and (5) the perception of freedom to participate. The second model depicts the assumed interaction between communication mode, the five variables cited above (now acting as independent variables), and a dependent variable, communication quality. There are two theoretical components of communication quality: (1) deviation from an optimal set of user requirements, and (2) the degree of convergence (unity based on mutual understanding and mutual agreement) emanating from a communication interaction. Using the theoretical models as a guide, an experiment was designed and performed to test the relationships among the variables. The experimental results led to the rejection of all null hypotheses; the results strongly favored face-to-face conferencing for solving task-oriented, information-sharing problems analagous to the case used in the present study. The findings indicate that asynchronous computer conferencing may have a detrimental effect on the thoroughness of information exchange, on the relevance of the information shared in terms of making the correct decision, and on the completeness of the consideration given to all problem dimensions.
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Wilkison, Bart D. "Effects of mental model quality on collaborative system performance." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22661.
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Barrios, Hemali. "Total Quality System Breakdowns in Outsourced Clinical Trials." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2019.
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Numerous deaths, tragedies, and underreported drug side effects occur in outsourced clinical trials. Total quality system breakdowns occur even though quality agreement contracts and quality management systems are used by pharmaceutical organizations. The purpose of this single case study was to explore strategies clinical quality assurance managers use to avoid breakdowns in quality with outsourced clinical trials in Asia-Pacific countries. The study included a purposeful sample of 15 clinical quality assurance managers from 1 pharmaceutical organization located in the Northeast region of the United States. The conceptual framework was von Bertalanffy's general systems theory. Face-to-face semistructured interviews or e-mail questionnaires containing open-ended questions were used to gather data from clinical quality assurance managers who had a minimum of 5 years of experience with outsourced clinical trials. Coded data and themes were identified through the modified van Kaam method. The three emergent themes were the following: vendor quality management, building quality in outsourced clinical trials, and quality management systems. Results of the study may contribute to social change by helping pharmaceutical organizations' leaders develop strategies and tools to improve the quality of outsourced clinical trials.
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Davenport, Daniel Lee. "INFORMATION SYSTEM CONTEXTUAL DATA QUALITY: A CASE STUDY." Lexington, Ky. : [University of Kentucky Libraries], 2006. http://lib.uky.edu/ETD/ukybuad2006d00403/Dissertation.pdf.
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Thesis (Ph. D.)--University of Kentucky, 2006.Title from document title page (viewed on June 1, 2006). Document formatted into pages; contains vii, 93 p. : ill. Includes abstract and vita. Includes bibliographical references (p. 87-91).
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Bathina, Manjula. "Quality analysis of the aggregate imaging system (AIMS)." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2416.
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Coarse and fine aggregates form the skeleton of any type of pavement and influence the
performance of the pavement structure. Characterization of the physical characteristics
(shape, angularity, and texture) of coarse and fine aggregates is the first step towards the
development of valid specifications for these characteristics. Current test methods used
in practice have several limitations in quantifying the shape and texture properties. An
imaging based test method ??Aggregate Imaging System (AIMS)?? has been recently
developed and shown to be capable of directly measuring the characteristics of coarse
and fine aggregates.
In this thesis, the quality of AIMS measurements is evaluated through the analysis of
repeatability, reproducibility, and sensitivity. The analysis results are also compared to
the results from other available test methods. AIMS provides the distribution of shape
characteristics in an aggregate sample. Statistical analysis is conducted in order to
determine the distribution function that best describes the distribution of shape
characteristics. The parameters of the distribution function can be related to the
performance of pavement layers. A new method based on the ??Categorical Units?? isdeveloped to test differences between aggregate samples in terms of shape
characteristics. It is demonstrated that this method is capable of quantifying the
differences between aggregates and can be used to capture the influence of change in
aggregate source or production techniques on aggregate characteristics.
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Ghasemshahi, Mehrdad. "PIKBES : expert system for welding process quality control." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/28017.
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The present research has arisen from a continuation of the WRAPS (Welding Robotic Adaptive Programming and Simulation) project at Loughborough University, and its development as the supervisory controller of a flexible welding system. A knowledge based expert system (PIKBES) has been developed for on-line expert modification of pre-programmed welding procedures during fabrication of batches in a flexible adaptive robotic welding environment.
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Gaouda, Ahmed Mohamed. "Wavelet-automated recognition system for power quality monitoring." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60538.pdf.
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Fung, Wai-yee Judy, and 馮蕙儀. "Quality management system and job satisfaction of supervisors." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31267142.
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Shi, Kai Jie, and 施凱傑. "Hospital services quality enhancement system." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/93559494582459484980.
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碩士長庚大學
資訊工程學研究所
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Usually, when a patient goes to the hospital, he spends a lot of time in the clinic waiting room because the appointment time is fan ahead of the actual checking time. Patient hopes to use this time to do some useful things instead of waiting. This research is to develop a system to meeting the goal. In this research, we use 802.11b/g environment in the hospital to satisfy this goal. When the patient arrives the hospital, he will get a Wi-Fi card at the check-in counter. The Wi-Fi card will show the residual waiting time and give waiting signal to owner when the residual waiting time is equal or less than walk time. So patient can do any thing he want when waiting. The advantages of using this system including：(1) Doing more meaningful things for patients instead of waiting in the clinic waiting rooms. (2) Decreasing the chance of disease infection in the clinic waiting room. (3) Increase the utilization of clinic waiting room.