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<In case the use-case entails complex scenarios, you may decide to create a system sequence diagram showing events generated by external actors, the order of events and inter-system events. All systems are treated as a black box>
Operation Contracts (optional)
<If the use case contains complex manipulations of domain objects, you may decide to specify operation contracts for all system operations included in the use case/ SSD.>
Andere functionele eisen (optional)
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