Polymorphic Scenario-Based Specification Models: Semantics and Applications

  • Authors:
  • Shahar Maoz

  • Affiliations:
  • Department of Computer Science and Applied Mathematics, The Weizmann Institute of Science, Rehovot, Israel

  • Venue:
  • MODELS '09 Proceedings of the 12th International Conference on Model Driven Engineering Languages and Systems
  • Year:
  • 2009

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Abstract

We present polymorphic scenarios , a generalization of a UML2-compliant variant of Damm and Harel's live sequence charts (LSC) in the context of object-orientation. Polymorphic scenarios are visualized using (modal) sequence diagrams where lifelines may represent classes and interfaces rather than concrete objects. Their semantics takes advantage of inheritance and interface realization to allow the specification of most expressive, succinct, and reusable universal and existential inter-object scenarios for object-oriented system models. We motivate the use of polymorphic scenarios, formally define their trace-based semantics, and present their application for scenario-based testing and execution, as implemented in the S2A compiler developed in our group.