# Describing distributed systems by categorical graph grammars

Graph Grammars: Theory And Application

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## Abstract

The structure of an asynchronous system of processes is described by a labeled hypergraph. It represents both the past and the present of the system. The set of all possible traces is defined by a hypergraph grammar. In the graph, actions and process states are represented by hyperedges. Each hyperedge is connected to some event nodes, some of which are considered to be predecessors of the edge, whereas others are successor nodes. This induces a partial ordering of the hyperedges. Some aspects of the Ada rendezvous are used as an example and translated into hypergraph productions.

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