Group Uml Elements Into Subsystem. The subsystem realization defines the actual contents of the subsystem. You can model an entire system as a hierarchy of subsystems.
External view In UML a subsystem is modeled as a package with the stereotype subsystem. In fact UML defines a standard package stereotype called subsystem to group UML models that represent a logical part of a system. You can model an entire system as a hierarchy of subsystems.
A useful convention is to have interface names start with a capital I Also if there is only one interface on the subsystem it can be named.
Subsystem became a component stereotype to represent unit of hierarchical decomposition for large systems in UML 20. Represents a subsystem component unit. Double-click the Subsystem shape to open the UML Subsystem Properties dialog box. If the user interface is relatively independent of the entity classes in the system ie.
