A discipline has six basic characteristics: - Donald H. Liles

Reference disciplines are existing bodies of knowledge that help establish the new discipline, that are a foundation of support for future work, and that are logical linkages to previous works. Throughout history, new disciplines have emerged from the need to solve new problems that are not fully addressed by existing disciplines. Emerging disciplines build upon the knowledge, subject matter, methods, tools, and theories of existing reference disciplines.

The presence of an enterprise reference architecture aids an enterprise in its ability to understand its structure and processes. Similar to a computer architecture, the enterprise architecture is comprised of several views. The enterprise architecture should provide activity, organizational, business rule (information), resource, and process views of an organization.

An enterprise must be viewed from several perspectives if it is to be fully described and understood (Barnett 1994; ESPIRIT Consortium AMICE 1991). Previous work in the development of architectures by the Automation & Robotics Research Institute (Presley et al. 1993) describes a five view approach. The Business Rule (or Information) View defines the entities managed by the enterprise and the rules governing their relationships and interactions. The Activity View defines the functions performed by the enterprise (what is done) while the Business Process View defines a time sequenced set of processes (how it is done). The resources and capabilities managed by the enterprise are defined in a Resource View. Finally, the Organization View is used to define how the enterprise organizes itself and the set of constraints and rules governing how it manages itself and its processes.