Uml22005

The document summarizes new features of UML 2.0 including improved sequence diagram constructs based on ITU standards, decoupling of activity modeling concepts from state machines, and contextual modeling constructs that allow for loose and strict encapsulation of internal structures. It also provides examples of various UML diagrams like class, sequence, state machine, component, and package diagrams and explains concepts like profiles, stereotypes, constraints and tagged values.