AGG 2.0 - New Features for Specifying and Analyzing Algebraic Graph Transformations

The integrated development environment AGG supports the specification of algebraic graph transformation systems based on attributed, typed graphs with node type inheritance, graph rules with application conditions, and graph constraints. It offers several analysis techniques for graph transformation systems including graph parsing, consistency checking of graphs as well as conflict and dependency detection in transformations by critical pair analysis of graph rules, an important instrument to support the confluence check of graph transformation systems. AGG 2.0 includes various new features added over the past two years. It supports the specification of complex control structures for rule application comprising the definition of control and object flow for rule sequences and nested application conditions. Furthermore, new possibilities for constructing rules from existing ones (e.g., inverse, minimal, amalgamated, and concurrent rules) and for more flexible usability of critical pair analyses have been realized.