A context boundary separates the relevant system environment from elements that do not affect the requirements.
The relevant environment may include people, organizations, devices, laws, business processes, and external systems. Therefore, the separation helps teams focus on important influences and interfaces.
First, teams identify potential requirement sources. Next, they assess how each source affects the system. They include relevant elements and exclude unrelated details. However, they should document uncertain cases for later review.
This concept differs from the system boundary. The system boundary separates the system from its environment. In contrast, the context boundary separates the relevant environment from the irrelevant environment.
Teams can document this separation with a context diagram, interface list, or system model. Moreover, they should review it when the project scope or operating environment changes.
A clear distinction reduces unnecessary analysis and supports complete, focused, and consistent requirements.
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