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UML for Mere Mortals® by Eric J. Naiburg, Robert A. Maksimchuk

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How Can the UML Model Requirements?

The concept of modeling requirements often strikes people as odd. Most of us think of requirements in the form that we usually see them—the written word. So, how do you model words?

Well, you don't. Think of “modeling” requirements as an exercise in organization. Most systems have dozens, hundreds, or in large systems, thousands of requirements. The only way to mentally grasp these requirements is to organize them into understandable chunks. You can do this organization in many ways—by function, location, platform, management structure (not a good choice), performance needs, and so on. However, many of these choices would begin to constrain the future designs before you even fully understand the needs of the ...

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