Operational Architecture (OA)

Operational Architecture defines the operational elements, business processes, activities, tasks and workflows required to support an operation. It is concerned with real-world activities, the people and machinery that perform them, the means by which they are performed, and the frequency of exchange. In short, it identifies who talks to whom and what they talk about.

Because it defines the logical aspects of the architecture, the OA can be used to develop user requirements, capture future concepts, and support operational planning processes. Through the use of activity modeling, analysts can break down unit functions for detailed analysis, thus revealing interrelationships and insights that otherwise could be overlooked.

The OA contains a series of "views" that describe certain aspects of a business area or operation. When used in conjunction with the Systems Architecture and Physical / Technical Architecture, the OA provides a roadmap for implementing new systems and technologies. This roadmap can then be used to guide the enterprise as it develops, procures, and implements information technology.