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| | Introduction to OMG UML |
 | | In fact, a UML model can be either platform-independent or platform-specific, as we choose, and the MDA development process uses both of these forms: Every MDA standard or application is based, normatively, on a Platform-Independent Model (PIM), which represents its business functionality and behavior very precisely but does not include technical aspects. |
 | | Improved Behavioral Modeling: In UML 1.X, the different behavioral models were independent, but in UML 2.0, they all derive from a fundamental definition of a behavior (except for the Use Case, which is subtly different but still participates in the new organization). |
 | | That is, the new language goes well beyond the Classes and Objects well-modeled by UML 1.X to add the capability to represent not only behavioral models, but also architectural models, business process and rules, and other models used in many different parts of computing and even non-computing disciplines. |
| www.omg.org /gettingstarted/what_is_uml.htm (2518 words) |
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