Anwar, Mahbub Morshed.

Use cases and scenarios are used by most of the object-oriented modeling approaches for capturing users' requirements, analyzing the system and building the test cases. All the different methodologies have different approaches for modeling use cases and applying them to other object-oriented models. Use case models help the analyst to construct dynamic as well as static models. In this thesis, we show an approach of modeling use cases for object-oriented software analysis. We give emphasis to modeling the sequences of the activities within the scenarios and the sequences of the scenarios throughout the system. We show how these sequences influence the static model (object diagram) and dynamic model (state diagram). We propose an Integrated State diagram for dynamic modeling and an Object Interaction diagram for modeling the flows of the scenarios throughout the system by applying the use case sequence models. Our approaches are demonstrated by solving a variety of examples.