- Graph transformation
**Graph transformation**, orGraph rewriting , concerns the technique to create a newgraph out of an original graph using some automatic machine. It has numerous applications, ranging from software verification to layoutalgorithm s.Graph transformations can be used as a computation abstraction. The basic idea is that the state of a computation can be represented as a graph, further steps in that computation can then be represented as transformation rules on that graph. Such rules consist of an original graph, which is to be matched to a subgraph in the complete state, and a replacing graph, which will replace the matched subgraph.

**References*** [

*http://www.gratra.org/ Graph Transformation and Graph Grammars*]

* Heckel, R. (2006). "Graph transformation in a nutshell". [*http://www.elsevier.com/locate/entcs Electronic Notes in Theoretical Computer Science*] 148 (1 SPEC. ISS.), pp. 187-198.

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