Specifying Use Case Interaction: Clarifying Extension Points and Rejoin Points

By: Pierre Metz, John O'Brien, Wolfgang Weber

Abstract

The authors highlight the ambiguity that surrounds the current semantics of extension points and rejoin points for specifying alternative courses of use case interaction. In order to address this issue, they propose that the interaction steps, within the branched interaction course that are referenced by the extension point, are always excluded from a use case scenario, while the interaction steps within the rejoined interaction course that are referenced by a rejoin point are always included into a use case scenario.

Cite as:

Pierre Metz, John O'Brien, Wolfgang Weber, “Specifying Use Case Interaction: Clarifying Extension Points and Rejoin Points”, Journal of Object Technology, Volume 3, no. 5 (May 2004), pp. 87-102, doi:10.5381/jot.2004.3.5.a1.