An introduction to OCL - the object contraints language - by example. The session also introduce the new MDriven debugger and shows how to get instant results of modelling efforts.

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Common expressions .create .allinstances .select .asstring .representation at0 and at operator assign operator orderby orderbyDescending loopvar ocl editor overhaul support execution of expressions union operator ocl use in the model (string representation) collect operator member of ECOModel Root abstract classes and its inheritance specialization .OclType derived attribute