Frameworks are used to encourage the use of a consistent structure for architectural descriptions. Because an Enterprise Architecture (EA) is a multi-dimensional representation of a large and complex entity, a variety of multi-dimensional structures are possible, differing in the number and nature of the dimensions. Each representation of an Enterprise Architecture is referred to as a "framework". Widely used Enterprise Architecture frameworks include the Open Group Architecture Framework (TOGAF), Six Sigma and the Zachman framework. Many EA tools available today provide support for all of these frameworks by accommodating each framework's notation conventions and model types.
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