Instrumente UML

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  Umbrello UML Modeller 2.32Liber
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  Modelio 5.3.1Liber

  An open source modeling environment (UML2, BPMN2).

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  Software Ideas Modeler 13.99Liber

  A lightweight and powerful CASE tool.

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  UMLet 15.1Liber

  Free UML Tool for Fast UML Diagrams.

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  Violet UML Editor 3.0.0Liber