In 1997, the responsibility for UML went from Rational Software to Object
Management GroupTail ( OMG ). Since then UML has been further developed by
this group. In 2005, a new generation of the language??”UML 2.0??”was offi cially
published. The group currently works on UML 2.2.
OMT class Booch class
FIGURE 3-1
The OMT versus Booch class notation.
1 Short for Object-Oriented Programming Systems, Languages, and Applications.
2 More specifi cally, his company, Objectory, had been taken over by Rational Software.
3.1 History
146 CHAPTER 3 UML??”Unifi ed Modeling Language
James Rumbaugh had also participated in the development of UML 2.0, while
Grady Booch and Ivar Jacobson had taken different roads.
3.2 Structure and Concepts
UML is extremely extensive, which might overwhelm some people at first.
However, once you know the basic structure and the concepts of UML, the mass
of language elements do no longer represent a hurdle. Compare it with a natural
language. You don ??™ t have to know the meaning of every word to have a talk with
somebody, say, in German, Spanish, or Swahili.
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