Electronic Communications of the EASST Volume 1 (2006) Proceedings of the Third International Workshop on Graph Based Tools (GraBaTs 2006) eDOBS - Graphical Debugging for Eclipse Leif Geiger and Albert Z ¨ undorf 4 pages Guest Editors: Albert Z ¨ undorf, Daniel Varr´ o Managing Editors: Tiziana Margaria, Julia Padberg, Gabriele Taentzer ECEASST Home Page: http://www.easst.org/eceasst/ ISSN 1863-2122