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It's an oft-quoted phrase that the only constant in today's business world is change. Perhaps more than ever, in the current challenging business environment, companies must be able to adapt to rapid changes with timely and effective responses. Agility is an increasingly important capability for any organization that is to survive and thrive. To be agile, organizations must be able to plan effectively and then rapidly execute those plans.



Enterprise architecture frameworks and TOGAF

For more than two decades, large organizations have been employing enterprise architecture (EA) as a means of aligning their technology capabilities to match the needs of the business. Organizations struggling with how to absorb technological innovations into their systems without undue disruption have found EA methods to be useful for managing the change and evolution of their systems.

Today, many large organizations have a dedicated EA group responsible for evaluating technologies, defining the policies governing their deployment, and working to ensure that new systems fit well within the organization and its mission. An important responsibility of the EA group is to ensure that projects deploy technologies in a manner that conforms to the principles, policies, and standards embodied in the organization's architecture. To succeed, these architecture groups need to orchestrate various methods and frameworks to bring a disciplined approach to the process. Some of today's popular EA frameworks include TOGAF, Zachman, DoDAF (also known as Department of Defense Architecture Framework), and Gartner's Enterprise Architecture Framework.

Since 1995, The Open Group and its Architecture Forum have been developing TOGAF. As TOGAF 9 enters the market in February 2009, the framework has emerged as one of the leading publically available EA frameworks. TOGAF can be licensed in two ways: organizations using TOGAF for their own internal use can license it under a free-of-charge perpetual license; other exploitations of TOGAF require an annual commercial license.

The members of the Architecture Forum have defined TOGAF based on best practices contributed by The Open Group member organizations and other members of the IT architecture community. It is a comprehensive framework that provides a development method, reference models, and the resources and tools needed to facilitate the establishment of an architecture program and to promote architecture development and implementation.

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