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Figure B.5 - Establishing Top Level Use Cases for the Hybrid SUV

Note my recommendation that a UML <<subsystem>> 'operation' be used to logically collect UseCases for the "operate vehicle" usage. The 'operation' subsystem then also owns the grouped Use Cases in the containment browser, giving a tidier model, as well as providing a convenient navigation point to the next diagram showing only the operational use cases.

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The Hybrid Sports Utility Vehicle (SUV) sample problem