C.: CVSM 2013 Challenge: Recognizing High-level Edit Operations in Evolving Models

In Model-Driven Engineering (MDE), models are sub-ject to continuous change and typically exist in many versions during their lifetime. To support an efficient MDE, fully featured development environments are a necessity that in particular must enable the compari-son of different versions of models. However, currently available comparison tools operate on low-level, some-times tool-specific model representations and result in elementary difference representations. The resulting difference representations are often not understand-able. Tool users rather prefer differences to be re-ported in terms of high-level edit operations, e.g. as offered by modern graphical editors, to present and handle model differences and to analyze the evolu-tion of models. In this paper, we present two par-ticular challenges for the detection of high-level edit operations between model versions in the absence of a change-log.