MBSE with GENESYS 073122

Reviewing Our Completed Use Case Diagram

293

Completing the Use Cases (a diagram is not enough)

A common error is stopping at the use case diagram Each use case must have • Description • Pre-conditions – a description of the conditions before the use case begins • Post-conditions – a description of the conditions after the use case ends A use case may optionally have (often specified via formal behavior instead) • Primary flow – a narrative of the standard behavioral flow to move from pre-condition to post-condition • Alternate flow – a narrative of the off-nominal cases to move from pre-condition to post-condition

294

MBSE with GENESYS