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archlab 1.0 usecase
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title "Airport check-in"
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description "One base use case taken apart with dependencies: the steps check-in always includes, and the ones that only sometimes extend it."
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@usecase
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actor passenger "Passenger"
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actor agent "Gate agent"
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boundary "Check-in System" tint=#b8a8f0
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usecase checkin "Check in"
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desc "The base use case. Everything else in the boundary hangs off it: two steps it always runs, two it runs only when the passenger asks."
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usecase verify "Verify travel documents" [e-gates]
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usecase issue "Issue a boarding pass"
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usecase baggage "Add extra baggage"
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usecase upgrade "Upgrade the seat"
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passenger -- checkin
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agent -- verify
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checkin ..> verify : include
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checkin ..> issue : include
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baggage ..> checkin : extend
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upgrade ..> checkin : extend
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