Interoperability via enterprise architecture

This paper summarizes the latest research in interoperability and enterprise architecture. It evaluates their features with respect to their applicability in a wide range of domains. It also recommends a seven layer Reference Model for a distributive, object oriented, domain specific, data-centric, bottom-up design. It favors a spiral model for life cycle in heterogeneous environment enterprise architecture in order to enhance interoperability. Simple interoperability model by software engineering institute, joint technical architecture by Department of Defense, federal Reference Model by EA shared interest group and data-driven architect techniques are modified and used as the basis for this model.