1.4. Model Compilers
At some level, it is fair to say that any language that can be executed is necessarily a programming language; it's just a matter of the level of abstraction. So, is executable UML yet another (graphical) programming language?
An executable UML model completely specifies the semantics of a single subject matter, and in that sense, it is indeed a “program” for that subject matter. There is no magic. Yet an executable UML model does not specify many of the elements we normally associate with programming today. For example, an executable UML model does not specify distribution; it does not specify the number and allocation of separate threads; it does not specify the organization of data; it does not even require implementation ...
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