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Activity simulation
Question:
Why isn't an operation outside a context object executed, e.g., an operation referring to an Activity outside a Block?
Answer: According to the fUML specification, an operation will be dispatched to the target object only, which is the context of the execution. You need to move the Activity into the Block and use it as a CallBehaviorAction with the Behavior setting.
Parametric evaluation
Question:
Why can't I use MATLAB as an external evaluator even after integration with MATLAB of the modeling tool?
Answer: You must use either the 64-bit or 32-bit version of MATLAB (Version 2012a or later) to align it with the 64-bit or 32-bit version of the modeling tool you are working with, e.g., MagicDraw or Cameo Systems Modeler. According to using MATLAB on 32-bit and 64-bit Microsoft Windows, you must also ensure that Path of System variables in the Environment Variables dialog is set to the correct MATLAB path.