Titlebook: Requirements Writing for System Engineering; George Koelsch Book 20161st edition George Koelsch 2016 Modeling Techniques.User Story.Requir

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Nonfunctional RequirementsSome sources may call these behavioral requirements, but they are everything that does not fall into the functional requirements. Nonfunctional requirements define how the system should do it. Nonfunctional requirements do not specify implementation. Look at the following list of types, and you will see what is covered.

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Data Interfaces and DocumentsIn this chapter, you are going to learn about data elements in the various systems you will explore in this chapter. In the first section, you will examine data elements within a requirement associated with an example system.

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User Interface RequirementsI will examine what areas to consider as part of UI requirements, consider using existing standards (which we will talk about more in this chapter), and look at how you need to address people with disabilities. First, let us examine what UI requirements are.

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Supplementing or Replacing Standard RequirementsThe entire book up until this point was spent talking about requirements as purely shall statements. This concept of requirements was the foundation of the waterfall development methodology, starting with hardware and then translated to software. However, other types of requirements are referred to such as user stories, use cases, and modeling.

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