Understanding Software Systems Using Reverse Engineering Technology Colloquium on Object Orientation in Databases and Software Engineering; the 62nd Congress of L'association Canadienne Francaise Pour L'avancement Des Sciences Acfas"

Software engineering research has focused primarily on software construction, neglecting software maintenance and evolution. Observed is a shift in research from synthesis to analysis. The process of reverse engineering is introduced as an aid in program understanding. This process is concerned with the analysis of existing software systems to make them more understandable for maintenance, re-engineering, and evolution purposes. Presented is reverse engineering technology developed as part of the Rigi project. The Rigi approach involves the identi cation of software artifacts in the subject system and the aggregation of these artifacts to form more abstract system representations. Early industrial experience has shown that software engineers using Rigi can quickly build mental models from the discovered abstractions that are compatible with the mental models formed by the maintainers of the underlying software.