Work Product Descriptor: Subsystem Use-Case Model
This is essentially the Use-Case Model artifact at one level down. It is separate artifact because it has a different responsible role (at this level). Otherwise, it has the same purpose and almost the same content: it becomes the Use-Case Model for the application of RUP to the development of the subsystem.
Based on Method Work Product:  Subsystem Use-Case Model
Relationships
Performing RolesMain Responsible: Assisting:
Input ToMandatory: Optional: External:
Output From
Properties
Optional
Planned