This document provides an overview of The Open Group Architecture Framework (TOGAF). It describes TOGAF as a generic, process-driven conceptual tool for designing, evaluating, and building an enterprise architecture. The core parts of TOGAF that are discussed are the Architecture Development Method (ADM), which partitions architecture work into phases, and the architectural iterations of preliminary, vision, development, transition, governance, and implementation. Key elements covered include the architectural model, contexts, reference models, "as-is" and "to-be" states, and gap analysis.