A Engenharia de Software tem desenvolvido técnicas e métodos para apoiar o desenvolvimento de software confiável, flexível, com baixo custo de desenvolvimento e fácil manutenção. A avaliação da manutenibilidade contribui para fornecer meios para produzir software com alta qualidade. Este trabalho apresenta um experimento controlado para avaliar a manutenibilidade entre as abordagens de web services: RESTful e SOAP-WSDL. Esta avaliação foi conduzida usando 3 programas implementados na linguagem de programação Java e com a mesma arquitetura. Com base na arquitetura projetada, os web services desenvolvidos foram utilizados como objetos em estudos de caso, possibilitando avaliar e comparar a sua manutenibilidade. Os resultados obtidos demonstraram relações entre as informações sobre o custo e a qualidade dos serviços web, que contribuíram para esclarecer os critérios para a obtenção de uma boa relação entre o custo da manutenção e a evolução dos serviços web. Para concluir, os resultados indica que os web services RESTful são mais manuteníveis do lado do servidor, e os web services SOAP-WSDL são mais manuteníveis do lado do cliente. Os estudos realizados no experimento controlado são promissores e podem auxiliar na redução de custo na manutenção dos serviços web, melhorando dessa forma a qualidade do software no geral / Software Engineering has developed techniques and methods to support the development of reliable software, exible, low development cost and easy maintenance. The evaluation of maintainability contributes in this direction, providing the means to produce software with high quality. This paper presents an controlled experiment to evaluate the maintainability between the approaches of web services: RESTful and SOAP-WSDL. This evaluation was conducted using four programs implemented in the Java programming language, using the same architecture. Based on the designed architecture, Web services were developed as objects used in case studies, allowing to evaluate and compare its maintainability. The results showed relationships between the information on the cost and quality of web services, which contributed to clarify the criteria for obtaining a good relationship between the cost of maintenance and evolution of web services. In conclusion, the results indicate the RESTful web services are more maintainable server side in contrast to the SOAP-WSDL web services are more maintainable client side. Studies in controlled experiments are promising and may help reduce the maintenance cost of web services, thus improving overall software quality

As aplicações desenvolvidas com a linguagem JavaScript, vêm aumentando a cada dia, não somente aquelas na web (client-side), como também as aplicações executadas no servidor (server-side) e em dispositivos móveis (mobile). Neste contexto, a existência de ferramentas para identicação de defeitos e code smells é fundamental, para auxiliar desenvolvedores durante a evoluçãp destas aplicações. A maioria dessas ferramentas utiliza uma lista de defeitos predenidos que são descobertos a partir da observação das melhores práticas de programação e a intuição do desenvolvedor. Para melhorar essas ferramentas, a descoberta automática de defeitos e code smells é importante, pois permite identicar quais ocorrem realmente na prática e de forma frequente. Uma ferramenta que implementa uma estratégia semiautomática para descobrir padrões de defeitos através de agrupamentos das mudanças realizadas no decorrer do desenvolvimento do projeto é a ferramenta BugAID. O objetivo deste trabalho é contribuir nessa ferramenta estendendo-a com melhorias na abordagem da extração de características, as quais são usadas pelos algoritmos de clusterização. O módulo estendido encarregado da extração de características é chamado de BugAIDExtract+ +. Além disso, neste trabalho é realizada uma avaliação de vários algoritmos de clusterização na descoberta dos padrõs de defeitos em software JavaScript / Applications developed with JavaScript language are increasing every day, not only for client-side, but also for server-side and for mobile devices. In this context, the existence of tools to identify faults is fundamental in order to assist developers during the evolution of their applications. Most of these tools use a list of predened faults that are discovered from the observation of the programming best practices and developer intuition. To improve these tools, the automatic discovery of faults and code smells is important because it allows to identify which ones actually occur in practice and frequently. A tool that implements a semiautomatic strategy for discovering bug patterns by grouping the changes made during the project development is the BugAID. The objective of this work is to contribute to the BugAID tool, extending this tool with improvements in the extraction of characteristics to be used by the clustering algorithm. The extended module that extracts the characteristics is called BE+. Additionally, an evaluation of the clustering algorithms used for discovering fault patterns in JavaScript software is performed

Appealing features of cloud services such as elasticity, scalability, universal access, low entry cost, and flexible billing motivate consumers to migrate their core businesses into the cloud. However, there are challenges about security, privacy, and compliance. Building compliant systems is difficult because of the complex nature of regulations and cloud systems. In addition, the lack of complete, precise, vendor neutral, and platform independent software architectures makes compliance even harder. We have attempted to make regulations clearer and more precise with patterns and reference architectures (RAs). We have analyzed regulation policies, identified overlaps, and abstracted them as patterns to build compliant RAs. RAs should be complete, precise, abstract, vendor neutral, platform independent, and with no implementation details; however, their levels of detail and abstraction are still debatable and there is no commonly accepted definition about what an RA should contain. Existing approaches to build RAs lack structured templates and systematic procedures. In addition, most approaches do not take full advantage of patterns and best practices that promote architectural quality. We have developed a five-step approach by analyzing features from available approaches but refined and combined them in a new way. We consider an RA as a big compound pattern that can improve the quality of the concrete architectures derived from it and from which we can derive more specialized RAs for cloud systems. We have built an RA for HIPAA, a compliance RA (CRA), and a specialized compliance and security RA (CSRA) for cloud systems. These RAs take advantage of patterns and best practices that promote software quality. We evaluated the architecture by creating profiles. The proposed approach can be used to build RAs from scratch or to build new RAs by abstracting real RAs for a given context. We have also described an RA itself as a compound pattern by using a modified POSA template. Finally, we have built a concrete deployment and availability architecture derived from CSRA that can be used as a foundation to build compliance systems in the cloud. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2015. / FAU Electronic Theses and Dissertations Collection

by Ng Mei Po Mabel. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leave 51-52). / ABSTRACT --- p.ii / TABLE OF CONTENTS --- p.iii / Chapter / Chapter I. --- INTRODUCTION --- p.1 / Chapter II. --- PROBLEM IN FOCUS --- p.3 / Chapter III. --- SCOPE OF STUDY --- p.7 / Chapter IV. --- RESEARCH METHODOLOGY --- p.8 / Chapter V. --- ORGANISATION OF INFORMATION TECHNOLOGY SERVICES DEPARTMENT --- p.8 / Function --- p.8 / Mission --- p.8 / Organisation Structure --- p.8 / Personnel Schedule --- p.8 / Requests for Computerisation --- p.10 / Departmental IS Strategic Planning --- p.10 / Microcomputer Systems and Items --- p.10 / Mainframe Systems and Mid Range Systems --- p.10 / Chapter VI. --- SYSTEMS DEVELOPMENT LIFE CYCLE --- p.12 / Introduction --- p.12 / Detailed Description --- p.15 / What is SSADM+ in ITSD ？ --- p.22 / Implementation of SSADM+ in ITSD --- p.26 / Chapter VII. --- THE ROAD TO ACHIEVE IS09001 --- p.28 / The Principal Concepts and Significance of IS09000 --- p.28 / Why is IS09000 Recommended to be Necessary for ITSD? --- p.29 / Overview of the Feasibility of Applying IS09000 in ITSD --- p.30 / Recommendations --- p.35 / Problems of Study --- p.38 / APPENDIX --- p.39 / BILIOGRAPHY --- p.51

Submitted by Maicon Juliano Schmidt (maicons) on 2015-06-30T12:58:44Z No. of bitstreams: 1 Lizandra Bays dos Santos.pdf: 9244211 bytes, checksum: 5d2cbae0a96db72c10de129513e76403 (MD5) / Made available in DSpace on 2015-06-30T12:58:44Z (GMT). No. of bitstreams: 1 Lizandra Bays dos Santos.pdf: 9244211 bytes, checksum: 5d2cbae0a96db72c10de129513e76403 (MD5) Previous issue date: 2013-01-31 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A qualidade do processo de desenvolvimento de software, somente, não garante a qualidade do produto que é desenvolvido, sendo necessário combinar técnicas de qualidade do processo e do produto. Existem diversos esforços na comunidade acadêmica e no mercado para de modelos de certificação de qualidade do processo, e observa-se uma lacuna no que tange à certificação de qualidade de produtos de software. Este trabalho o desenvolvimento de um sistema que visa dar suporte para a certificação de qualidade de produtos de software. Um framework de processo para certificação de produtos é apresentado, o qual é composto de um subprocesso de especialização do modelo de qualidade focado em riscos, um subprocesso de medição da qualidade e um sobprocesso de avaliação da qualidade. Para apoiar estes subprocessos, a arquitetura do sistema desenvolvido faz uso de ontologias para representar o conhecimento envolvido no modelo de qualidade e agentes de software para manipular os indivíduos nas ontologias. / The software development process quality does not assure product quality, being necessary to combine techniques of process quality and product quality. There are several efforts in the academic community and in the market for models of quality certification of the development process, so that there is a gap regarding the quality certification of the product developed. This work presents the development of a system that aims to support the certification of quality software products. A framework of product certification process is showed, which is composed of subprocesses of quality model specialization, quality measurement and quality assessment. To support these subprocesses, the developed system architecture uses ontologies to represent knowledge about the quality model and software agents for handling to individuals in the ontologies.

Made available in DSpace on 2016-04-29T14:23:20Z (GMT). No. of bitstreams: 1 Hebert Bratefixe Alquimim.pdf: 2664407 bytes, checksum: 77eb81380d89e7688a502253778a5265 (MD5) Previous issue date: 2013-06-19 / Within the advent of Internet and its popularization, several Software that allow the creation of electronic questionnaire for a focus on evaluation of educational process in learning, appear as an alternative to the teacher, even if the course is taught in presence meeting, allowing a differentiated evaluation. This research has as aim to describe a methodology for evaluating electronic questionnaire son the Web, using as basis the standard ISO /IEC 9126, which specifies the quality of Software products and the standard ISO /IEC 14598 which describes the evaluation process of the Software product. To perform the evaluation, Webapps were identified for building electronic questionnaires that comply with the criteria established and at the end, the evaluation will have their data analyzed and compared according to the quality of Software / Com o advento e a popularização da Internet, diversos Softwares que permitem a criação de questionários eletrônicos como foco na avaliação de ensino aparecem como uma alternativa para o docente, mesmo que a disciplina lecionada seja presencial, permitindo assim uma forma diferenciada de avaliação. Este trabalho tem por objetivo descrever uma proposta de critério para avaliação de questionários eletrônicos na Web, utilizando como base a norma ABNT NBR ISO/IEC 9126, que especifica as qualidades de produtos de Software e, a norma ABNT NBR ISO/IEC 14598 que descreve o processo de avaliação de produto de Software. Para a realização da avaliação foram identificados Webapps para construção de questionários eletrônicos que estejam de acordo com o critério estabelecido e ao final, terão seus dados analisados e comparados de acordo com as características de qualidade de Software

<p>Osnovni istraživački problem ove disertacije predstavlja razvoj modela<br />za upravljanje lancima snabdevanja u cilju podizanje kvaliteta usluge.<br />Stoga je razvijen adaptivni model za upravljanje lancima snabdevanja<br />koji se sastoji od modela za: upravljanje lancima snabdevanja,<br />upravljanje korisničkim zahtevima i ocenu kvaliteta pružene usluge. U<br />svrhu primene adaptivni model je predstavljen algoritmom sa precizno<br />definisanim koracima koje korisnik treba da sprovede da bi podigao<br />nivo kvaliteta usluge i održao stabilnost lanca snabdevanja. Verifikacija<br />modela je urađena na primeru 17 lanaca snabdevanja na teritoriji<br />Republike Srbije, &scaron;to je rezultiralo odgovorima na koji način se može<br />podići kvalitet usluge.<br />Doprinos istraživanja ogleda u mogućnosti direktne primene<br />razvijenog modela i pružanja novih informacija za naučnu i stručnu<br />javnost koje mogu predstavljati kvalitetnu podlogu daljem razvoju<br />modela za upravljanje lancima snabdevanja.</p> / <p>The basic research problem of this dissertation is the development of<br />supply chain management model in order to improve the quality of<br />service. Therefore, an adaptive supply chain management model has<br />been developed that consists of a model for: supply chain management,<br />management of user requirements and assessment of the quality of<br />service provided. For the purpose of application the adaptive model, it<br />is presented an algorithm with precisely defined steps that the user<br />needs to implement in order to raise the level of service quality and<br />maintain the stability of supply. The model verification was done on<br />the example of 17 supply chains in the territory of the Republic of<br />Serbia, which resulted in answers on how to improve the quality of the<br />service. The contribution of the research is reflected in the possibility<br />of direct application of the developed model and providing new<br />information for the scientific and professional public, which can<br />represent a quality basis for the further development of the supply<br />chain management model.</p>

As aplicações desenvolvidas com a linguagem JavaScript, vêm aumentando a cada dia, não somente aquelas na web (client-side), como também as aplicações executadas no servidor (server-side) e em dispositivos móveis (mobile). Neste contexto, a existência de ferramentas para identicação de defeitos e code smells é fundamental, para auxiliar desenvolvedores durante a evoluçãp destas aplicações. A maioria dessas ferramentas utiliza uma lista de defeitos predenidos que são descobertos a partir da observação das melhores práticas de programação e a intuição do desenvolvedor. Para melhorar essas ferramentas, a descoberta automática de defeitos e code smells é importante, pois permite identicar quais ocorrem realmente na prática e de forma frequente. Uma ferramenta que implementa uma estratégia semiautomática para descobrir padrões de defeitos através de agrupamentos das mudanças realizadas no decorrer do desenvolvimento do projeto é a ferramenta BugAID. O objetivo deste trabalho é contribuir nessa ferramenta estendendo-a com melhorias na abordagem da extração de características, as quais são usadas pelos algoritmos de clusterização. O módulo estendido encarregado da extração de características é chamado de BugAIDExtract+ +. Além disso, neste trabalho é realizada uma avaliação de vários algoritmos de clusterização na descoberta dos padrõs de defeitos em software JavaScript / Applications developed with JavaScript language are increasing every day, not only for client-side, but also for server-side and for mobile devices. In this context, the existence of tools to identify faults is fundamental in order to assist developers during the evolution of their applications. Most of these tools use a list of predened faults that are discovered from the observation of the programming best practices and developer intuition. To improve these tools, the automatic discovery of faults and code smells is important because it allows to identify which ones actually occur in practice and frequently. A tool that implements a semiautomatic strategy for discovering bug patterns by grouping the changes made during the project development is the BugAID. The objective of this work is to contribute to the BugAID tool, extending this tool with improvements in the extraction of characteristics to be used by the clustering algorithm. The extended module that extracts the characteristics is called BE+. Additionally, an evaluation of the clustering algorithms used for discovering fault patterns in JavaScript software is performed

Com a crescente utilização de imagens médicas na prática clínica, torna-se necessária a introdução de tecnologias que garantam o armazenamento, indexação e recuperação eficaz dessas imagens. O sistema de recuperação de imagens médicas baseada em conteúdo (S-CBIR) compõe a base de tecnologias computacionais que oferecem aos usuários médicos aplicativos para apoio ao diagnóstico, sendo capaz de responder a consultas por similaridade por meio de características pictóricas extraídas das imagens médicas. Embora as pesquisas em S-CBIR tenham iniciado há quase duas décadas, atualmente existe uma discrepância em relação à quantidade de trabalhos publicados na literatura e os sistemas que, de fato, foram implementados e avaliados. Além disso, muitos protótipos vêm sendo discutidos, mas até o final da escrita desta tese, não foram encontradas evidências de que algum deles esteja disponível comercialmente. Essa limitação é conhecida pela comunidade científica da área por gap de aplicação. Em geral, isso ocorre devido à dificuldade dessas aplicações em superar alguns desafios, como a divergência entre os resultados obtidos automaticamente pelo sistema e aqueles esperados pelos médicos (gap semântico), entre outros gap. Outros fatores também podem ser relatados, como a tendência da não utilização de modelos de qualidade sistematizados para o desenvolvimento dos sistemas, e a carência de modelos que sejam específicos no domínio de aplicação. Com base nesses desafios e em boas práticas de métodos, técnicas e ferramentas da Engenharia de Software, esta tese apresenta um Modelo de Qualidade para melhorias de S-CBIR (MQ-SCBIR), que tem por objetivo apoiar o desenvolvimento e avaliação de S-CBIR, a partir de diretrizes para aumentar o nível de qualidade, buscando a superação do gap de aplicação. O MQ-SCBIR foi construído com base em: evidências adquiridas por meio de uma revisão sistemática e pesquisa empírica sobre como esses sistemas vêm sendo desenvolvidos e avaliados na literatura e na prática; resultados da avaliação de um S-CBIR baseados em testes heurísticos em um ambiente real; modelos bem estabelecidos, como o Capability Maturity Model Integration e Melhoria de Processo do Software Brasileiro; e em experiências pessoais. O uso do MQ-SCBIR pode trazer benefícios para as organizações desenvolvedoras, como a redução da complexidade no desenvolvimento, incluindo a garantia de implementação de boas práticas de qualidade de software e práticas específicas para a superação das limitações de S-CBIR durante o processo de desenvolvimento. / The development of technologies for storing, indexing and recovering clinical images is paramount to support the increasing use of these images in clinical diagnostic evaluation. Content-based image retrieval systems (CBIR-S) are some of the main computational technologies which offer physicians different applications to aid diagnostic processes. They allow similarity queries by extracting pictorial features from medical images. Even though research on S-CBIR started almost two decades ago, there are discrepancies regarding the amount of studies available in the literature and the number of systems which have actually been implemented and evaluated. Many prototypes have been discussed, but up to the moment this study was completed we found no evidence that any of those systems are either commercially available or being currently used in clinical practice. This limitation is known as application gap. In general, this happens due to the difficulty to overcome some obstacles, such as the differences between the results retrieved automatically by the system and those expected by the physicians (semantic gap). Other factors can also be described, such as the tendency towards not using systematic quality models to develop these systems and the lack of specific models for this domain of application. Based on these challenges and also on best practice methods, techniques and tools from software engineering, this work presents a quality model to improve S-CBIR systems (QM-CBIRS). It strives to tackle limitations during the development process by overcoming the semantic gap. The QM-CBIRS was built upon evidence gathered by means of a systematic review on the state-of-the-art and empiric research on the development and evaluation of these systems. Apart from that, results from the assessment of a CBIR-S based on empiric tests and on diagnostic tasks in radiology and well-established software quality models, such as CMMI and the Brazilian Software Improvement Process are presented. Apart from that, results from the assessment of a CBIR-S based on empiric tests and on diagnostic tasks in radiology and well-established software quality models, such as CMMI and the Brazilian Software Improvement Process are presented. The use of QM-CBIRS might be beneficial to development teams in many ways, for example, by increasing the quality of CBIR systems and reducing complexity, thus surpassing limitations from CBIR systems during the development process.

Complex modern software is often built using existing application frameworks and middleware frameworks. These frameworks provide useful common services, while simultaneously imposing architectural rules and constraints. Existing software architecture evaluation methods do not explicitly consider the implications of these frameworks for software architecture. This research extends scenario-based architecture evaluation methods by incorporating framework-related information into different evaluation activities. I propose four techniques which target four different activities within a scenario-based architecture evaluation method. 1) Scenario development: A new technique was designed aiming to extract general scenarios and tactics from framework-related architectural patterns. The technique is intended to complement the current scenario development process. The feasibility of the technique was validated through a case study. Significant improvements of scenario quality were observed in a controlled experiment conducted by another colleague. 2) Architecture representation: A new metrics-driven technique was created to reconstruct software architecture in a just-in-time fashion. This technique was validated in a case study. This approach has significantly improved the efficiency of architecture representation in a complex environment. 3) Attribute specific analysis (performance only): A model-driven approach to performance measurement was applied by decoupling framework-specific information from performance testing requirements. This technique was validated on two platforms (J2EE and Web Services) through a number of case studies. This technique leads to the benchmark producing more representative measures of the eventual application. It reduces the complexity behind the load testing suite and framework-specific performance data collecting utilities. 4) Trade-off and sensitivity analysis: A new technique was designed seeking to improve the Analytical Hierarchical Process (AHP) for trade-off and sensitivity analysis during a framework selection process. This approach was validated in a case study using data from a commercial project. The approach can identify 1) trade-offs implied by an architecture alternative, along with the magnitude of these trade-offs. 2) the most critical decisions in the overall decision process 3) the sensitivity of the final decision and its capability for handling quality attribute priority changes.