The SDMLib Solution to the Model Execution Case for TTC2015

This paper describes the SDMLib solution to the Model Execution case for the TTC2015 [1]. We solved all case variants and did all performance tests. For this case we generated the Java implementation of the activity diagram classes with SDMLib in order to have an efficient model representation. Then we modeled the operations using SDMLib model transformations. These model transformations were embedded into methods of the activity diagram classes leveraging the overriding of methods for the distinction of different behavior for different kinds of activity nodes. Our solution deviates from the case description in the handling of tokens: instead of consuming and recreating tokens we use just one token and allow it to be at several places at a time and we just move the token forward through the activity diagram. This results in more elegant modeling and faster execution.