ER'03 - Innovative Approaches to Conceptual Modeling Taxonomy-based Conceptual Modeling for Peer-to-Peer Networks Yannis Tzitzikas Carlo Meghini Nicolas Spyratos Conceptual Modeling of Concurrent Systems through Stepwise Abstraction and Refinement using Petri Net Morphisms Boleslaw Mikolajczak Zuyan Wang EITH -- A unifying representation for database schema and application code in enterprise knowledge extraction Mark S. Schmalz Joachim Hammer MingXi Wu Oguzhan Topsakal Return to ER'03 Sessions ©2005 Association for Computing Machinery