*Description* The Asf+Sdf meta-environment has been used as a platform for program transformation geared towards SoftwareRenovation. The basic idea is to generate default equations for generic traversal and analysis functions from an Sdf grammar. Some of these default equations can then be overridden by non-default equations to obtain specific traversal and analysis functions. *Publications* * GenerationOfSoftwareRenovationFactoriesFromCompilers * ScaffoldingForSoftwareRenovation