A method and corresponding apparatus provide an interface between two software products, i.e., data structures, to produce an effective enterprise architecture (EA) tool set. The software products may be, for example, System Architect.RTM. (SA) software product and Network Modeling and Simulation software product, referred to as OPNET. The interface translates extensible markup language (XML) files of, for example, network diagrams between the two software products, such as SA and OPNET. Specifically, the interface allows transfer of network diagrams from OPNET software data structure into SA software data structure to expedite the creation of enterprise architectures within SA. The interface further allows transfer of network diagrams from SA software data structure into OPNET software data structure, expediting the simulation of network diagrams within OPNET.