Requirements Prerequisite
Requirements describe in detail what a software system is supposed to do, and they are the first step toward a solution. The requirements activity is also known as "requirements development," "requirements analysis," "analysis," "requirements definition," "software requirements," "specification," "functional spec," and "spec."
Why Have Official Requirements?
An explicit set of requirements is important for several reasons.
Explicit requirements help to ensure that the user rather than the programmer drives the system's functionality. If the requirements are explicit, the user can review them and agree to them. If they're not, the programmer usually ends up making requirements decisions during programming. Explicit requirements ...
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