ITM 305 Lecture Notes - Lecture 10: Sequence Diagram, Use Case, Class Diagram

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 305
• Professor: Raymond Moss

Document Summary

Chapte(cid:396) 13 use case realizatio(cid:374): se(cid:395)ue(cid:374)ce diag(cid:396)a(cid:373) Use case realization is the process of elaborating the detailed design with interaction for a particular use case. Each use case is taken individually to determine all the classes that collaborate on it. As part of that process, any other utility or support classes are identified. As the details of the classes are designed, the design class diagram is also updated as necessary. The realization of a use case is done through the development of an interaction diagram. Two types of interaction diagrams can be used but we only use the following: Sequence diagram, which emphasizes the sequence of messages sent between objects for a specific use case. A use case controller acts as a switchboard, taking input messages and routing them to the correct domain class. Without the use case controller, the input window would need references to several problem domain objects.