Most, if not all, systems have a Start Up use case, and some initial system operation related to the starting up of the application. Although this startUp system operation is the earliest one to execute, delay the development of an interaction diagram for it until after all other system operations have been considered. This ensures that information has been discovered concerning the initialization activities required to support the later system operation interaction diagrams.
Do the initialization design last.
The startUp operation abstractly represents the initialization phase of execution when an application is launched. To understand how to design an ...