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Rule-based Model Extraction from Source Code Correia, Rui Matos, Carlos El-Ramly, Mohammad Heckel, Reiko Reverse engineering Code categorization Program representation In the context of an approach for reengineering legacy soft- ware systems at the architectural level, we present in this paper a reverse engineering methodology that uses a model de¯ned as a type graph to represent source-code subject to a code categorization process. Two al- ternative methods for referencing the source code are discussed: native vs. graphical. To represent the code, the native representation uses the abstract syntax tree while the graphical uses a programming language metamodel. Two options regarding the way that the graph can relate to the source code reference model are also considered: association model vs. direct link. The extraction of the program representation, complying to the type graph, is based on rules that categorize source code according to its purpose. The techniques to address this process, such as the code categorization rules, are shown together with examples. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Rui Correia and Carlos Matos and Mohammad El-Ramly and Reiko Heckel 2007 Is Part Of Dagstuhl Seminar Proceedings, Volume 6302, Aspects For Legacy Applications (2007) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.06302.9 urn:nbn:de:0030-drops-8815 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.06302.9 eng https://creativecommons.org/licenses/by/4.0/legalcode