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Requirements Engineering Fundamentals by Chris Rupp, Klaus Pohl

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Defining System and Context Boundaries

It is within the responsibility of the requirements engineer to define the system context properly. In order to do so, it is necessary to separate the system context from the system to be developed as well as from the parts of reality that are irrelevant for the system (see Figure 2-1):

  • Defining the system boundary: When defining the system boundary, a decision has to be made: Which aspects pertain to the system to be developed and which aspects belong in the system context?

  • Defining the context boundary: When defining the context boundary, the question to be answered is: Which aspects pertain to the system context (i.e., have a relation to the system to be developed) and which aspects are part of the irrelevant ...

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