Local transitions cannot be represented in UML and xtUML

IncQueryLabs / EMDW-MC

The EMDW Model Compiler (MC) is an Eclipse based tool for generating optimized C++ source code for applications developed in the novel xtUML-RT modeling language.

Eclipse Public License 1.0

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Local transitions cannot be represented in UML and xtUML #141

Open abelhegedus opened 9 years ago

abelhegedus commented 9 years ago

Local transitions are defined as follows:

source and target state is the same
does not trigger exit and entry actions

There is no specific representation in UML or XTUMLRT-Common.

Will the xtUML profile contain a stereotype to be put on such transitions?
Will this appear in the xtUMLrt or common metamodels?

gbatori1 commented 9 years ago

Local transitions have special properties in UML (not a suprise it is called Local) so no special stereotype needed. It should appear in the Common metamodel.

abelhegedus commented 9 years ago

For future reference:

Transitions in UML have a kind attribute, that can be external (default), local or internal.
Currently the UML integration does not take the kind attribute into account.

Remaining question:

Should the Common metamodel also include all three kinds?
Should we handle these transitions as the UML standard prescribes or define a more restricted semantics for flat statemachines?