Product: Management and Development
Product: Management and Development
Original Article

Steps for requirements writing

Cláudio Fogaça Truyts, Daniel Alves Simão de Lima, Fabricio Ziliotti Damico, Felipe Motta, Luciano Tomassoni Coelho, Ricardo Franco

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This article presents an overview of the advantages of using Systems Engineering techniques to a product or an organization development, from the moment of its conception to its disposal. The Section 1 describes the work of a Systems Engineer in a project description, in other words, the project objectives identification, the techniques and tools that should be used and how simple and clear the requirements should be. The Section 2 presents the project stakeholders, who are the actors or organizations that contribute actively or passively, positively or negatively to the project, and the responsibility of the Systems Engineer, who must identify the stakeholders needs and provide one or more engineering solutions to meet these needs during the project lifecycle. The Section 3 discusses the quality of the requirements. Once identified the needs of the stakeholders, each one generates one or more requirements which must be written so as to be clear, concise and complete. Section 4 shows several engineering models which can be used on the process, such as: V model, Evolutionary model and Spiral model. Section 5 presents techniques used to identify the essential functions of the project from the requirements of stakeholders, and implement it by different architectures. The Section 6 shows that we can obtain alternatives of hardware and software implementations from physical architectures, closing the Systems Engineering process. The conclusion will present the skills or prerequisites that a Systems Engineer must have in order to perform his role, including qualified technical knowledge, human relationships, balance in the division of objectives, and others.


systems engineering models, systems engineer, requirements, project, stakeholders.
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