The Open Group Architecture Framework (TOGAF) is a widely adopted framework for developing and governing enterprise architecture. It provides a structured approach for designing, planning, implementing, and managing an organization’s information technology architecture aligned with business objectives.

Origins and History

TOGAF was first published in 1995 by The Open Group, based on the US Department of Defense Technical Architecture Framework for Information Management (TAFIM). TAFIM was developed in the early 1990s and donated to The Open Group when the DoD discontinued the program. TOGAF has evolved through multiple versions, with TOGAF 8 (2002) introducing the Architecture Development Method (ADM) as the central process, and TOGAF 9 (2009, updated 2018) significantly expanding the content framework and enterprise continuum concepts. TOGAF is maintained by The Open Group Architecture Forum and is supported by a professional certification program that has certified over 100,000 practitioners worldwide.

Core Components

The Architecture Development Method (ADM) is TOGAF’s iterative process for developing enterprise architecture through phases: Architecture Vision, Business Architecture, Information Systems Architecture, Technology Architecture, Opportunities and Solutions, Migration Planning, Implementation Governance, and Architecture Change Management. The Architecture Content Framework defines deliverables, artifacts, and building blocks produced during ADM phases. The Enterprise Continuum provides a classification scheme for architecture assets ranging from generic foundation architectures to organization-specific solutions. The Architecture Repository stores architectural outputs for reuse and governance.

Practical Applications

Organizations use TOGAF to establish enterprise architecture practices that align IT investments with business strategy, to standardize technology platforms and reduce redundancy, and to govern architectural decisions across large transformation programs. TOGAF is frequently used alongside ArchiMate for modeling and ITIL for service management.

Sources

  1. The Open Group (2018). TOGAF Standard, Version 9.2. Document Number: C182. https://www.opengroup.org/togaf
  2. Sessions, R. (2007). “A Comparison of the Top Four Enterprise Architecture Methodologies.” Microsoft Developer Network.
  3. Lankhorst, M. (2017). Enterprise Architecture at Work, 4th ed. Springer.