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Executable UML

publish date: 2026/06/08 21:08:36.001910 UTC

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Executable UML (xUML) is described as a subset of UML 2 that supports fully automated model-to-code transformation. What two requirements must be met to achieve this automated transformation?

The models must use only class diagrams, AND all attributes must have defined types

The system must run on Java only, AND the UML diagrams must be generated by a licensed OMG tool

Models must be constructed with clearly defined meanings that can be compiled to code, AND a way of adding information to graphical models about how the operations defined in the model are implemented must exist

All models must be drawn by hand and scanned, AND the development team must have at least 10 years of UML experience

Correct Answer

Explanation

To achieve fully automated transformation of models to code using Executable UML, two requirements must be met: (1) Models must be constructed with clearly defined meanings that can be compiled to code — graphical models need unambiguous semantics; (2) A way of adding information to graphical models about how the operations defined in the model are implemented is needed — this goes beyond what standard UML diagrams capture.

Reference

Software Engineering, Ian Sommerville, 9th edition

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