Cycles in metagraphs

Modeling information systems using metagraphs provides a versatile basis for the visualization and analysis of such systems. In a metagraph, directed edges are defined between sets of elements, rather than between individual elements, as is the case with directed graphs. This facilitates representation of the rich interactions that are found among the components of an information system, such as files, models, and rules. We show that mutual dependencies in a system can be represented by cycles in metagraphs. Specifically, we examine the properties of metagraph cycles, demonstrate that metagraphs provide a more powerful tool for modeling cyclic behavior than do traditional graphical tools, and investigate their usefulness in the design and integration of information systems.<>