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Thomas Mowbray and Taiwan Allen


Many, if not most, US Federal Departments and agencies continue to spend millions of dollars annually on Enterprise Architecture (EA). Few government organizations extract anything of value from their EAs. For a large government agency, the authors matured the EA program with an integrated repository that supports executive decision-makers with actionable, fact-based enterprise viewpoints. The integrated repository and best practice EA methods are being successfully applied to Information Technology (IT) lifecycle governance, portfolio management, strategic planning, and complex multi-program analyses.


Enterprise Architecture, Strategic Planning, EA Maturity, Zachman Framework


The authors would like to acknowledge the following colleagues who provided ideas and encouragement for this article: Diane Retson, Chas Andreae, LJ Schottle, Ken Bodenheimer, Al Esguerra, Arty Kharats, Ogechi Onyewu, and Michele Bond for her copy edit.

About the authors

Dr. Thomas Mowbray, PhD, CEA, CPHIMS, GPEN Gold is both a Zachman-Certified and FEAC Certified Enterprise Architect, an IBM/Rational System Architect Power User, Oracle Business Intelligence Developer, and Principal Architect at Data Networks Corporation ( For DNC, Dr. Mowbray is the lead methodologist and EA developer on the government EA contract. He has served as Consulting Chief Architect on multiple government programs including USAF, PBGC, USMC, State of Maryland, and as Consulting Chief Enterprise Architect of the DC Government. Tom has coauthored five books on systems architecture.

Mr. Taiwan Allen, CEA is an FEAC Certified EA, Principal Architect at Data Networks Corporation (DNC), and he is a Technical EA Manager.


S. Bernard: An Introduction to Enterprise Architecture, AuthorHouse (2005)

W. Brown, R. Malveau, H. McCormick, T. Mowbray: Antipatterns: Refactoring. Software, Architecture, and Projects in Crisis, John Wiley & Sons (1998).

T.J. Mowbray: The District of Columbia’s Citywide Enterprise Architecture, Journal of Enterprise Architecture (August 2005).

J. Putman: Architecting with RM-ODP (Reference Model for Open Distributed Processing), Prentice Hall PTR (2001).

J. Sherwood, A. Clark, D. Lynas: Enterprise Security Architecture, CMP Books (2005).

The Open Group: The TOGAF® Standard (2009); available at

Journal of Enterprise Architecture