Electronic Communications of the EASST Volume 65 (2014) Proceedings of the International Workshop on Software Quality and Maintainability (SQM 2014) A Model-Based Approach to Impact Analysis Using Model Differencing Klaus M ¨ uller, Bernhard Rumpe 15 pages Guest Editors: Lodewijk Bergmans, Tom Mens, Steven Raemaekers Managing Editors: Tiziana Margaria, Julia Padberg, Gabriele Taentzer ECEASST Home Page: http://www.easst.org/eceasst/ ISSN 1863-2122 [MR14] K. Müller, B. Rumpe: A Model-Based Approach to Impact Analysis Using Model Differencing. In: Proceedings of the 8th International Workshop on Software Quality and Maintainability (SQM). Eds.: L. Bergmans, T. Mens, S. Raemaekers, ECEASST Journal, vol. 65, Antwerp, Belgium, February 2014. www.se-rwth.de/publications