frameworks, the TEAF matrix. Other sources: The TEAF matrix is called a customization sample, see here, p. 22 Standards based on the Zachman Framework Zachman Framework is also used as a framework to describe standards, for example standards for healthcare and healthcare information system. Each cell of the framework contains such a series of standards for healthcare and healthcare information system. Mapping other frameworks Another application of the Zachman Framework is as reference model for other enterprise architectures, see for example these four: Other examples: Analysis of the Rational Unified Process as a Process, How the Model-driven architecture (MDA) models used in software development map to the Zachman Framework. Mapping the IEC 62264 models onto the Zachman framework for analysing products information traceability. Mapping the TOGAF Architecture Development Method (e.g. the methodology) to the Zachman Framework. Base for other enterprise architecture frameworks Less obvious are the ways the original Zachman framework has stimulated the development of other enterprise architecture frameworks, such as in the NIST Enterprise Architecture Model, the C4ISR AE, the DOE AE, and the DoDAF: The Federal Enterprise Architecture Framework (FEAF) is based on the Zachman Framework but only addresses the first three columns of Zachman, using slightly different names, and focuses in the top of the three rows. (see here) Example: One-VA Enterprise Architecture The Zachman Framework methodology has for example been used by the United States Department of Veterans Affairs (VA) to develop and maintain its One-VA Enterprise Architecture in 2001. This methodology required defining all aspects of the VA enterprise from a business process, data, technical, location, personnel, and requirements perspective. The next step in implementing the methodology has been to define all functions related to each business process and identify associated data elements. Once identified, duplication of function and inconsistency in data definition can be identified and resolved, . The Department of Veterans Affairs at the beginning of the 21st century planned to implement an enterprise architecture fully based on the Zachman Framework. The Zachman Framework was used as a reference model to initiate enterprise architecture planning in 2001. Somewhere in between the VA Zachman Framework Portal was constructed. This VA Zachman Framework Portal is still in use as a reference model for example in the determination of EA information collected from various business and project source documents. Eventually, an enterprise architecture repository was created at the macro level by the Zachman framework and