Modelagem da fase de requisitos em processos de desenvolvimento de software: uma abordagem utilizando dinâmica de sistemas

• Autor(a) principal: Ambrósio, Bernardo Giori
• Data de Publicação: 2008
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2581
• topic: Engenharia de software; Dinâmica de sistemas; Requisitos de software; Processo de desenvolvimento de software; Gerenciamento de risco; Software engineering; System dynamics; Software requirements; Software development process; Risk management; CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO

Decision problems in software project management are complex, with many interconnected dynamic variables related in a non-linear way. Given the great number of variables and their relationships involved in this process, it becomes very difficult, if not impossible, for managers to understand and manage the whole process without the help of tools that allow them to see the forest for the trees. System Dynamics is one of these tools, providing a modeling technique that allows the analysis, understanding and simulation of problems and situations with dynamic behaviour. Some previous studies have been conducted to define a system dynamics model for describing parts of software project management problems, aiming at understanding the problems involved. However, these studies haven t addressed the modeling of variables and their relationships involved in the requirements phase of software development lifecycles. The goal of this research was to build a system dynamics model focusing on the key variables involved in the requirements phase of software development lifecycles, establishing their mutual influence. The simulations carried on using the model let us foresee the consequences of risks materialization, such as people turnover, high requirements volatility and others. It was also possible to anticipate, using the simulation, the effects of decision making before implementing the decisions in the real world. The model may be used as a tool for supporting managers in decision making during the requirements phase. For setting up the model and running simulations, we built a control panel that contains the parameters used for adjusting the model variables according to the scenarios to be used in the simulations. The analysis and discussion of results obtained from the simulations let us conclude that the models are consistent with reality, and so they can be used in actual project management decision making.