Department of Defense Enterprise Architecture

Definition
The Department of Defense Architecture Framework (DoDAF) is an architecture framework for the U.S. Department of Defense (DoD) that provides visualization infrastructure for specific stakeholders concerns through viewpoints organized by various views. These views are artifacts for visualizing, understanding, and assimilating the broad scope and complexities of an architecture description through tabular, structural, behavioral, ontological, pictorial, temporal, graphical, probabilistic, or alternative conceptual means.

This Architecture Framework is especially suited to large systems with complex integration and interoperability challenges, and it is apparently unique in its employment of "operational views." These views offer overview and details aimed to specific stakeholders within their domain and in interaction with other domains in which the system will operate.