This UML 2.0: Superstructure is the second of two complementary specifications that represent a major revision to the Object Management Group's Unified Modeling Language (UML), for which the most current version is UML v1.4. The first specification, which serves as the architectural foundation for this specification, is the UML 2.0: Infrastructure.
This UML 2.0: Superstructure defines the user level
constructs required for UML 2.0. It is complemented by UML
2.0: Infrastructure which defines the foundational language
constructs required for UML 2.0. The two complementary
specifications constitute a complete specification for the UML 2.0
modeling language.
The FTF needs to review and complete this section -- this version was derived by a literal copying of the "Introduction" section of the Preface in the Draft Adopted Specification 2.