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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
121

The Impact of Refactoring LegacySystems on Code Quality Metrics

Jonsson, Alan January 2017 (has links)
Maintaining legacy code can be difficult, it can also be hard to know whether what you are doing tomaintain the code is actually beneficial or not. This paper examines the impact of refactoring on codequality by systematically applying proven refactoring techniques and measuring its effect on codequality through code metrics.As an application at Xylem was being modified the application was simultaneously refactored. Beforeany refactoring was done the code quality was measured by maintainability index, cyclomaticcomplexity, depth of inheritance, class coupling and lines of code. Some parts of the application werere-written, others were refactored. By measuring the same metrics after the application wasrefactored it was found that the metrics had improved, indicating that the code quality hadincreased.
122

Using dynamic programming and unsupervised learning to optimize material flow in assembly line  supermarket : A case study of Volvo Powertrain at Skövde

Ali, Muzdalifa January 2019 (has links)
Replenishment is an important process in automotive industries. It is the process by which parts required at assembly lines are stored and organized in assembly lines supermarket. Over many years replenishment have been done with the aim of positively impacting the varying demand frequency of articles in multi flows mixed-model assembly lines (MMALs) operating in just-in-time (JIT) fashion. However, a series of successive replenishment actions have negative impacts on the number of reallocation movements of parts within volume flows of supermarkets especially within a context of multi-flows supermarkets (MFSs). The cost of movements of parts within the supermarket has not been taken into consideration in previous replenishment methods. This is a significant problem since both un-optimized reallocation movements, and articles misplacement resolutions lead to production halts which cost assembly plants valuable time and money. Therefore, this research study proposes a replenishment method that optimizes flow of material within multi-flow assembly lines supermarkets and hence reduces the cost due to reallocation movement of multi-flow assembly lines supermarkets. The proposed method has been evaluated in the context of Volvo automobile engine assembly plant in Skövde. The proposed replenishment method has been evaluated by conducting an experiment using real-world data for the assembly plant in context. Performance metrics such as accuracy, F1-score, precision, sensitivity, and specificity were used to demonstrate the utility and validity of the proposed method. The evaluation results showed that the proposed method for optimizing material flow in supermarkets performed better than the existing method. In addition to utility, the proposed method provides contribution to knowledge by providing means for the industry to adopt replenishment method that takes into consideration the cost of reallocation movements of the parts within the supermarket.
123

Procedimentos como recursos para ação : um estudo sobre como o Cockpit de uma aeronave comercial gerencia situações anormais e de emergência

Carim Júnior, Guido Cesar January 2016 (has links)
Na aviação, os procedimentos para situações anormais e de emergência, geralmente organizados em checklists compilados no Quick Reference Handbook (QRH), são elaborados e revisados como mecanismos de controle organizacional. Esta abordagem, no entanto, tem mostrado limitações em servir como solução para todos os tipos de situações, principalmente para problemas não estruturados. Neste cenário, o conceito ‘procedimentos como recursos para a ação’ tem sido visto como uma abordagem alternativa, embora tenha sido desenvolvida apenas de forma incipiente. Assim, o objetivo geral desta tese foi propor um protocolo para revisão dos procedimentos disponíveis em cockpits de aviões comerciais como apoio aos pilotos durante a gestão de anomalia. Para atingir o objetivo, a pesquisa adotou a Design Science Research e foi dividida em quatro etapas: compressão do problema, sugestão e desenvolvimento, avaliação e conclusão. Um estudo etnográfico cognitivo conduzido em uma companhia aérea brasileira propiciou melhor entendimento do problema por meio de observações participantes, entrevistas retrospectivas, entrevistas em grupo, dados secundários e documentos técnicos. Os resultados mostraram como fatores contextuais fora do escopo do QRH geraram demandas extras e requereram estratégias de adaptação dos sistemas cognitivos correlacionados. Fragmentos do QRH e de recursos adicionais foram intercalados para apoiar essas estratégias. As sugestões de melhorias envolveram a reorganização do QRH, dos checklists e dos recursos adicionais, a fim de melhor apoiar o reconhecimento de anomalias, o diagnóstico de problemas e o curso de ação. As sete etapas do protocolo foram desenvolvidas com base nos princípios teóricos e empíricos derivados do estudo e, em seguida, o protocolo foi avaliado de acordo com cinco critérios. Enquanto o artefato teve um bom desempenho em dois critérios, três deles revelaram a necessidade de ajustes, que podem ser superados com novas aplicações em diferentes contextos. Em conclusão, o estudo atingiu os objetivos geral e específicos, contribuiu para a classe de problemas ao operacionalizar o conceito ‘procedimentos como recursos para a ação’ e contribuiu para solucionar o problema prático ao proporcionar um artefato para ajudar as companhias aéreas a revisar seus procedimentos e outros recursos de modo a melhor apoiar os pilotos na gestão de anomalias. / In aviation, procedures for abnormal and emergency situations, generally organized in checklists compiled in the Quick Reference Handbook (QRH), are designed and redesigned as mechanisms of organizational control. This approach, however, has shown some drawbacks as a solution for any situation, specially for unstructured problems. In this scenario, the concept ‘procedures and resources for action’ has been seen as an alternative approach, although it has been incipiently developed. Thus, the general objective of this thesis was to propose a protocol for redesigning the procedures available in commercial aircraft cockpits as means of supporting pilots during anomaly management. To achieve the objective, the research adopted the Design Science Research approach and was divided into four stages: awareness of the problem, suggestion and development, evaluation and conclusion. A cognitive ethnographic study conducted in a Brazilian airline provided better understanding of the problem through participant observations, retrospective interviews, group interviews, secondary data and technical documents as sources of data. The results showed how contextual factors beyond the QRH scope generated extra demands and required adaptive strategies from the joint cognitive systems. Fragments from the QRH and from additional resources were interleaved to support these strategies. The design implications involved the reorganization of the QRH, the checklist and the additional resources in order to better support the anomaly recognition, the problem diagnosis and the course of action. The seven steps of the protocol were developed based on the theoretical and empirical principles derived from the study and, then, the protocol was evaluated according to five criteria. While the artefact performed well in two criteria, in three of them revealed opportunities of improvement, which can be overcame with more applications in different settings. In conclusion, the study achieved general and specifics objectives, contributed to the class of problems by operationalizing the concept ‘procedures as resources for action’ and contributed to solve the practical problem by providing an artefact that help airlines to redesign procedures and other resources in order to better support pilots during anomaly management.
124

?Smart cities methodology (Scml) : uma metodologia em smart cities baseada em valor p?blico?

Porto, Josiane Brietzke 30 August 2018 (has links)
Submitted by PPG Administra??o e Neg?cios (ppgad@pucrs.br) on 2018-10-31T17:22:35Z No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-11-01T13:25:18Z (GMT) No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Made available in DSpace on 2018-11-01T13:33:16Z (GMT). No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) Previous issue date: 2018-08-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Smart city is an approach to managing and coping with urban challenges in search for innovative solutions leading to better quality of life and sustainability in cities. Several initiatives have been undertaken, with a significant worldwide growth trend in the coming years. Such initiatives, however, may require non-trivial public investment, and failures resulting from them can have important consequences such as monetary loss, loss of reputation, reduced confidence and lack of public value. This research aims at setting a methodology in smart cities composed of a reference model and an assessment method from the Public Value perspective. These artifacts were evaluated based on the perception of 23 representatives of the Quadruple Helix (government, industry, university and citizens) and on the results of the applicability in practice, through an initial pilot evaluation, in the city of Nova Santa Rita. It follows Design Science as its epistemological paradigm and Design Science Research as its method, uniting theoretical and methodological rigor as well as practical utility for society. The results showed that the artifacts developed in this research can help in the design and assessment of smart cities in a gradual way, bringing together best practices considered intelligent and that allow for the expansion and/or generation of Public Value, consisting of a prescriptive scientific contribution. Among the contributions are the protocol, contingency and construction heuristics, which detail how these artifacts were rigorously designed and developed, under the Design Science paradigm, to solve the problem identified in this research. They are specific and useful knowledge, generated from this research, aimed at the practice and resolution of real problem, and can be used for future evolutions of the artifacts developed in the research and/or design of new artifacts, in different contexts and classes of problems. / Smart city corresponde a uma abordagem para gerenciamento e enfrentamento de desafios urbanos, em busca de solu??es inovadoras para melhor qualidade de vida e sustentabilidade nas cidades. Em raz?o disso, diversas iniciativas v?m sendo feitas, com tend?ncia de crescimento significativo nos pr?ximos anos, em ?mbito mundial. Entretanto, tais iniciativas podem requerer investimentos p?blicos n?o triviais e falhas podem ter consequ?ncias importantes como perda monet?ria, preju?zo em rela??o ? reputa??o, redu??o de confian?a e aus?ncia de valor p?blico para as partes interessadas. Este trabalho desenvolveu uma metodologia em smart cities, sob a perspectiva de Valor P?blico, composta por um modelo de refer?ncia e um m?todo de avalia??o, avaliados com base na percep??o de 23 representantes da Qu?drupla H?lice (governo, ind?stria, universidade e cidad?os) e nos resultados da aplicabilidade na pr?tica, por meio de uma primeira avalia??o piloto, na cidade ga?cha de Nova Santa Rita. Adota Design Science como paradigma epistemol?gico e Design Science Research como m?todo de pesquisa, unindo rigor te?rico-metodol?gico e utilidade pr?tica para a sociedade. Os resultados mostraram que os artefatos desenvolvidos nessa pesquisa podem ajudar na concep??o e na avalia??o de smart cities de um modo gradual, reunindo melhores pr?ticas consideradas inteligentes, que possibilitam amplia??o e/ou gera??o de Valor P?blico, consistindo numa contribui??o cient?fica de car?ter prescritivo. Entre as contribui??es t?m-se tamb?m o protocolo, as heur?sticas contingenciais e de constru??o, que detalham como esses artefatos foram projetados e desenvolvidos com rigor, sob o paradigma de Design Science, para a resolu??o do problema identificado nessa pesquisa. Constituem conhecimento espec?fico e ?til, gerado a partir da pesquisa, voltado ? pr?tica e ? resolu??o de um problema real, podendo ser usado para futuras evolu??es dos artefatos desenvolvidos na pesquisa e/ou no projeto de novos artefatos, em diferentes contextos e classes de problemas.
125

A Multidimensional and Visual Exploration Approach to Project Portfolio Management

Zheng, Guangzhi 06 May 2009 (has links)
Managing projects in an organization, especially a project-oriented organization, is a challenging task. Project data has a large volume and is complex to manage. It is different from managing a single project, because one needs to integrate and synthesize information from multiple projects and multiple perspectives for high-level strategic business decisions, such as aligning projects with business objectives, balancing investment and expected return, and allocating resources. Current methods and tools either do not well integrate multiple aspects or are not intuitive and easy to use for managers and executives. In this dissertation project, a multidimensional and visual exploration approach was designed and evaluated to provide a unique and intuitive option to support decision making in project portfolio management. The research followed a general design science research methodology involving phases of awareness of problem, suggestion, development, evaluation and conclusion. The approach was implemented into a software system using a prototyping method and was evaluated through user interviews. The evaluation result demonstrates the utility and ease-of-use of the approach, and confirms design objectives. The research brings a new perspective and provides a new decision support tool for project portfolio management. It also contributes to the design knowledge of visual exploration systems for business portfolio management by theorizing the system.
126

Uncertainty in the information supply chain: Integrating multiple health care data sources

Tremblay, Monica Chiarini 01 June 2007 (has links)
Similar to a product supply chain, an information supply chain is a dynamic environment where networks of information-sharing agents gather data from many sources and utilize the same data for different tasks. Unfortunately, raw data arriving from a variety of sources are often plagued by errors (Ballou et al. 1998), which can lead to poor decision making. Supporting decision making in this challenging environment demands a proactive approach to data quality management, since the decision maker has no control over these data sources (Shankaranarayan et al. 2003). This is true in health care, and in particular in health planning, where health care resource allocation is often based on summarized data from a myriad of sources such as hospital admissions, vital statistic records, and specific disease registries. This work investigates issues of data quality in the information supply chain. It proposes three result-driven data quality metrics that inform and aid decision makers with incomplete and inconsistent data and help mitigate insensitivity to sample size, a well known decision bias. To design and evaluate the result-driven data quality metrics this thesis utilizes the design science paradigm (Simon 1996; Hevner, March et al. 2004). The metrics are implemented within a simple OLAP interface, utilizing data aggregated from several healthcare data sources, and presented to decision makers in four focus groups. This research is one of the first to propose and outline the use of focus groups as a technique to demonstrate utility and efficacy of design science artifacts. Results from the focus groups demonstrate that the proposed metrics are useful, and that the metrics are efficient in altering a decision maker's data analytic strategies. Additionally, results indicate that comparative techniques, such as benchmarking or scenario based approaches, are promising approaches in data quality. Finally, results from this research reveal that decision making literature needs to be considered in the design of BI tools. Participants of the focus groups confirmed that people are insensitive to sample size, but when attention was drawn to small sample sizes, this bias was mitigated.
127

Design e management: um estudo de ciência e tecnologia no campo dos estudos organizacionais

Gross, Amanda Albuquerque 29 February 2016 (has links)
Submitted by Amanda Gross (amanda.a.gross@gmail.com) on 2016-03-28T01:07:41Z No. of bitstreams: 1 DISSERTACAO_Amanda_Gross_VR_FINAL.pdf: 1524696 bytes, checksum: a5997248d60899ecf47cbaf96b2e8426 (MD5) / Approved for entry into archive by Pamela Beltran Tonsa (pamela.tonsa@fgv.br) on 2016-03-28T09:42:56Z (GMT) No. of bitstreams: 1 DISSERTACAO_Amanda_Gross_VR_FINAL.pdf: 1524696 bytes, checksum: a5997248d60899ecf47cbaf96b2e8426 (MD5) / Made available in DSpace on 2016-03-28T11:26:29Z (GMT). No. of bitstreams: 1 DISSERTACAO_Amanda_Gross_VR_FINAL.pdf: 1524696 bytes, checksum: a5997248d60899ecf47cbaf96b2e8426 (MD5) Previous issue date: 2016-02-29 / The aim of this work is to map the socio-technical network of design in management as proposed by the Actor-Network Theory and present the translation process by which the word has passed. Considering this aim, this research have analyzed papers that discussed this subject and were published in the major journals in the field of organizations and others publications. These papers demonstrate how in recent decades, the design has undergone an expansion of meaning and application in the direction of management (or management towards the design), through the approaches called design thinking, design science or process design. The research is justified, since this subject is present in the major journals of management and organizational studies, as an important tool for contemporary challenges, such as change management, entrepreneurship and innovation (Stephens & Boland, 2014). Also, the design has been increasingly seen as a key activity in the economic battle (Callon, 1986), determining the current lifestyles and the construction of our future world. In the field of organizational studies, as demonstrated by this research, the design appears as an approach that overcomes the dichotomy between positivism and critical approach in organizational theory (Jelinek, Romme & Boland, 2008). Finally, this research identified the humans and no-humans actors and described the four moments of the translation process considering the design in the management field as follows, (a) problematization, Herbert A. Simon argues for design as a professional basic skill for any professional specialty, including management (Simon, 1996), in his book The Science of Artificial first published in 1969; (b) interessement, when designers advocated for a design of complex systems such as organizations; (c) engagement, designers and organizations scholars argue by design in management as an alternative to the dichotomy between positivism and critical studies, and (d) mobilization, organizations scholars come in defense of design approach for management as a way to cope contemporary organizational models marked by incompleteness and borderless / Esta dissertação se propõe a cartografar as redes sociotécnicas do design no campo do management nos moldes propostos pela Teoria Ator-Rede e apresentar o processo de translação pelo qual passou o termo ao adentrar no campo. Para tal, levantou e analisou artigos publicados sobre o tema nos principais periódicos da área de organizações e publicações. Estes textos demonstram como, nas últimas décadas, o design tem passado por uma expansão de sentido e aplicação na direção do management (ou do management no sentido do design), através das abordagens denominadas design thinking, design science ou design process. A pesquisa se justifica, uma vez que este assunto está presente nos principais periódicos do management e dos estudos organizacionais, como uma importante ferramenta para solução de problemas que desafiam os sistemas organizacionais, como: a mudança, o empreendedorismo e a inovação (Stephens & Boland, 2014). É importante destacar que o design tem sido cada vez mais considerado uma atividade decisiva na batalha econômica (Callon, 1986), na determinação dos atuais estilos de vida (lifestyle) e na construção de nosso mundo futuro. No campo dos estudos organizacionais, como demonstrou esta pesquisa, o design surge como uma abordagem que supera a dicotomia entre positivismo e a abordagem crítica na teoria organizacional (Jelinek, Romme & Boland, 2008). Por fim, esta dissertação se ateve à cartografia das redes sociotécnicas e à descrição das quatro principais fases do processo de translação do design no campo do management, a saber: (a) problematização, marcada pela publicação de The Sciences of Artificial em 1969 de Herbert A. Simon, no qual, ele argumenta pelo design como uma habilidade básica para todas as especialidades profissionais, incluindo a gestão (Simon, 1996), (b) interessamento, designers defendendo um design de sistemas complexos como as organizações, (c) engajamento, designers e teóricos das organizações juntos pelo design no management como uma alternativa para a superação da dicotomia entre positivismo e os estudos críticos na administração, e, (d) mobilização, na qual os teóricos das organizações partem em defesa do design no management como um forma de dar conta de modelos organizacionais contemporâneos com fronteiras mais permeáveis e em constante reformulação
128

?Smart cities methodology (Scml) : uma metodologia em smart cities baseada em valor p?blico?

Porto, Josiane Brietzke 30 August 2018 (has links)
Submitted by PPG Administra??o e Neg?cios (ppgad@pucrs.br) on 2018-11-20T19:28:09Z No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-11-21T12:12:51Z (GMT) No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Made available in DSpace on 2018-11-21T12:20:25Z (GMT). No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) Previous issue date: 2018-08-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Smart city is an approach to managing and coping with urban challenges in search for innovative solutions leading to better quality of life and sustainability in cities. Several initiatives have been undertaken, with a significant worldwide growth trend in the coming years. Such initiatives, however, may require non-trivial public investment, and failures resulting from them can have important consequences such as monetary loss, loss of reputation, reduced confidence and lack of public value. This research aims at setting a methodology in smart cities composed of a reference model and an assessment method from the Public Value perspective. These artifacts were evaluated based on the perception of 23 representatives of the Quadruple Helix (government, industry, university and citizens) and on the results of the applicability in practice, through an initial pilot evaluation, in the city of Nova Santa Rita. It follows Design Science as its epistemological paradigm and Design Science Research as its method, uniting theoretical and methodological rigor as well as practical utility for society. The results showed that the artifacts developed in this research can help in the design and assessment of smart cities in a gradual way, bringing together best practices considered intelligent and that allow for the expansion and/or generation of Public Value, consisting of a prescriptive scientific contribution. Among the contributions are the protocol, contingency and construction heuristics, which detail how these artifacts were rigorously designed and developed, under the Design Science paradigm, to solve the problem identified in this research. They are specific and useful knowledge, generated from this research, aimed at the practice and resolution of real problem, and can be used for future evolutions of the artifacts developed in the research and/or design of new artifacts, in different contexts and classes of problems. / Smart city corresponde a uma abordagem para gerenciamento e enfrentamento de desafios urbanos, em busca de solu??es inovadoras para melhor qualidade de vida e sustentabilidade nas cidades. Em raz?o disso, diversas iniciativas v?m sendo feitas, com tend?ncia de crescimento significativo nos pr?ximos anos, em ?mbito mundial. Entretanto, tais iniciativas podem requerer investimentos p?blicos n?o triviais e falhas podem ter consequ?ncias importantes como perda monet?ria, preju?zo em rela??o ? reputa??o, redu??o de confian?a e aus?ncia de valor p?blico para as partes interessadas. Este trabalho desenvolveu uma metodologia em smart cities, sob a perspectiva de Valor P?blico, composta por um modelo de refer?ncia e um m?todo de avalia??o, avaliados com base na percep??o de 23 representantes da Qu?drupla H?lice (governo, ind?stria, universidade e cidad?os) e nos resultados da aplicabilidade na pr?tica, por meio de uma primeira avalia??o piloto, na cidade ga?cha de Nova Santa Rita. Adota Design Science como paradigma epistemol?gico e Design Science Research como m?todo de pesquisa, unindo rigor te?rico-metodol?gico e utilidade pr?tica para a sociedade. Os resultados mostraram que os artefatos desenvolvidos nessa pesquisa podem ajudar na concep??o e na avalia??o de smart cities de um modo gradual, reunindo melhores pr?ticas consideradas inteligentes, que possibilitam amplia??o e/ou gera??o de Valor P?blico, consistindo numa contribui??o cient?fica de car?ter prescritivo. Entre as contribui??es t?m-se tamb?m o protocolo, as heur?sticas contingenciais e de constru??o, que detalham como esses artefatos foram projetados e desenvolvidos com rigor, sob o paradigma de Design Science, para a resolu??o do problema identificado nessa pesquisa. Constituem conhecimento espec?fico e ?til, gerado a partir da pesquisa, voltado ? pr?tica e ? resolu??o de um problema real, podendo ser usado para futuras evolu??es dos artefatos desenvolvidos na pesquisa e/ou no projeto de novos artefatos, em diferentes contextos e classes de problemas.
129

Procedimentos como recursos para ação : um estudo sobre como o Cockpit de uma aeronave comercial gerencia situações anormais e de emergência

Carim Júnior, Guido Cesar January 2016 (has links)
Na aviação, os procedimentos para situações anormais e de emergência, geralmente organizados em checklists compilados no Quick Reference Handbook (QRH), são elaborados e revisados como mecanismos de controle organizacional. Esta abordagem, no entanto, tem mostrado limitações em servir como solução para todos os tipos de situações, principalmente para problemas não estruturados. Neste cenário, o conceito ‘procedimentos como recursos para a ação’ tem sido visto como uma abordagem alternativa, embora tenha sido desenvolvida apenas de forma incipiente. Assim, o objetivo geral desta tese foi propor um protocolo para revisão dos procedimentos disponíveis em cockpits de aviões comerciais como apoio aos pilotos durante a gestão de anomalia. Para atingir o objetivo, a pesquisa adotou a Design Science Research e foi dividida em quatro etapas: compressão do problema, sugestão e desenvolvimento, avaliação e conclusão. Um estudo etnográfico cognitivo conduzido em uma companhia aérea brasileira propiciou melhor entendimento do problema por meio de observações participantes, entrevistas retrospectivas, entrevistas em grupo, dados secundários e documentos técnicos. Os resultados mostraram como fatores contextuais fora do escopo do QRH geraram demandas extras e requereram estratégias de adaptação dos sistemas cognitivos correlacionados. Fragmentos do QRH e de recursos adicionais foram intercalados para apoiar essas estratégias. As sugestões de melhorias envolveram a reorganização do QRH, dos checklists e dos recursos adicionais, a fim de melhor apoiar o reconhecimento de anomalias, o diagnóstico de problemas e o curso de ação. As sete etapas do protocolo foram desenvolvidas com base nos princípios teóricos e empíricos derivados do estudo e, em seguida, o protocolo foi avaliado de acordo com cinco critérios. Enquanto o artefato teve um bom desempenho em dois critérios, três deles revelaram a necessidade de ajustes, que podem ser superados com novas aplicações em diferentes contextos. Em conclusão, o estudo atingiu os objetivos geral e específicos, contribuiu para a classe de problemas ao operacionalizar o conceito ‘procedimentos como recursos para a ação’ e contribuiu para solucionar o problema prático ao proporcionar um artefato para ajudar as companhias aéreas a revisar seus procedimentos e outros recursos de modo a melhor apoiar os pilotos na gestão de anomalias. / In aviation, procedures for abnormal and emergency situations, generally organized in checklists compiled in the Quick Reference Handbook (QRH), are designed and redesigned as mechanisms of organizational control. This approach, however, has shown some drawbacks as a solution for any situation, specially for unstructured problems. In this scenario, the concept ‘procedures and resources for action’ has been seen as an alternative approach, although it has been incipiently developed. Thus, the general objective of this thesis was to propose a protocol for redesigning the procedures available in commercial aircraft cockpits as means of supporting pilots during anomaly management. To achieve the objective, the research adopted the Design Science Research approach and was divided into four stages: awareness of the problem, suggestion and development, evaluation and conclusion. A cognitive ethnographic study conducted in a Brazilian airline provided better understanding of the problem through participant observations, retrospective interviews, group interviews, secondary data and technical documents as sources of data. The results showed how contextual factors beyond the QRH scope generated extra demands and required adaptive strategies from the joint cognitive systems. Fragments from the QRH and from additional resources were interleaved to support these strategies. The design implications involved the reorganization of the QRH, the checklist and the additional resources in order to better support the anomaly recognition, the problem diagnosis and the course of action. The seven steps of the protocol were developed based on the theoretical and empirical principles derived from the study and, then, the protocol was evaluated according to five criteria. While the artefact performed well in two criteria, in three of them revealed opportunities of improvement, which can be overcame with more applications in different settings. In conclusion, the study achieved general and specifics objectives, contributed to the class of problems by operationalizing the concept ‘procedures as resources for action’ and contributed to solve the practical problem by providing an artefact that help airlines to redesign procedures and other resources in order to better support pilots during anomaly management.
130

O ZEP Framework: um framework para a criação de métodos para envolvimento de stakeholders no desenvolvimento de soluções de software. / The ZEP Framework: a framework for the creation of methods for engaging stakeholder in software solution development.

José Paulo Telles Pires de Faria 04 October 2011 (has links)
A especificação dos requisitos de software pressupõe que se conheçam os requisitos do sistema do que será parte. Os requisitos do sistema, por sua vez, pressupõem o conhecimento do negócio (business) onde o sistema será utilizado. Para que estes conhecimentos sejam obtidos é importante o envolvimento dos stakeholders tanto no nível de sistema quanto no nível de negócio. As literaturas sobre Engenharia de Requisitos, Engenharia de Software e Engenharia de Sistemas concordam que o envolvimento dos stakeholders é fundamental. O tratamento dispensado ao assunto, no entanto, é pequeno, dada a importância do tema. Esta dissertação, utilizando conceitos da Engenharia de Métodos Situacionais e de Design Science, apresenta o ZEP Framework, um artefato, produzido com o software EPF Composer, que permite a criação de métodos para envolver o stakeholder. Estes métodos, para serem criados, devem levar em consideração as peculiaridades da organização, dos recursos disponíveis e do projeto em si. São apresentados, ainda, alguns cenários, na área de Turismo, como exemplos da utilização do framework. / The specification of software requirements implies that the system requirements are known. The system requirement requires knowledge about the business of which the system will be a part. To obtain this knowledge it is important to engage stakeholders not only at the system level, but at the business level as well. The literature on Requirements Engineering, Software Engineering and Systems Engineering consider the involvement of stakeholders as fundamental. Despite this, the treatment of the subject is not proportional to its importance. This dissertation, using concepts from Situational Method Engineering and Design Science, presents the ZEP Framework, an artifact built with the EPF Composer software, that allows the creation of methods to engage stakeholders. These methods consider the specific situation of the organization, the resources available and the characteristics of the initiative itself. Some scenarios, in the Tourism field, are presented as examples of the utilization of the framework.

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