Component diagram model element notation differences

You can use the mapping table for Component diagram model elements to understand the differences between UML 1.4 and UML 2.0.

UML 1.4 UML 2.0
Component Component
Note: All components such as Subprogram Body, Package Specification, and Task Specifications (stereotyped components) map to the single UML Component metaclass; however, the UML Component stereotype identifies them as Subprogram Body, Package Specification, and so on.
Related reference
Activity diagram model element UML notation differences
Class diagram model element UML notation differences
Collaboration diagram model element notation differences
Deployment diagram model element notation differences
Sequence diagram model element notation differences
Statechart diagram model element notation mappings
Use Case diagram model element notation differences
Notational differences in expressing multiplicity
Specific UML 2.0 semantic mapping
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