Presentation at 7th MULTI Workshop

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The conference series “Models” ( is the leading international conference in the field of modeling software systems. In the context of this conference the workshop “MULTI” has been taking place for several years. It is the central platform of an international community of scientists who are researching a new paradigm of conceptual modeling and software development. The “Models 2020” was supposed to take place in Montreal this year, but due to the pandemic it was only conducted virtually. Ulrich Frank and Daniel Töpel presented an approach for the maintenance of executable multi-level models during the 7th “MULTI” workshop ( The particular challenge here is dealing with classes whose level can change with the context of use. The conceptualization of such “contingent level” classes was also presented.