Improved Metagraph Method of Information System Process Modeling

The metagraph has a strong formalization description and analysis ability as it takes into account the visualization of the model and the standardization of mathematics, thus it has unique advantages for the modeling of large-scale information systems. For the needs of large-scale information system process analysis, this paper gives an ordered metagraph definition of the information process based on the basic concept of the metagraph, and distinguishes simple metapath and complex metapath, and further explains the nodes, arcs and overall models of information process modeling. Then this paper proposes an algorithm of the largest metapath. Finally, the value of the preliminary application of the metagraph was verified through a case.