Comparing and Combining Structural Models of Complex Systems

A method is presented whereby two or more structural models may be compared, or combined, or both. It is demonstrated, using expansion and application of a theorem dealing with the adjacency characteristics of directed graphs, that such comparing and/or combining activities can be accomplished witb data already generated in the process of synthesizing the models. Three situations where this method seemn particularly profitable are discussed. An illustration of how the method has been applied in a real problem setting is provided.