Treasury Enterprise Architecture Framework  Treasury Enterprise Architecture Framework (TEAF) was an Enterprise architecture framework for treasury, based on the Zachman Framework. It was developed by the US Department of the Treasury and published in July 2000. May 2012 this framework has been subsumed by evolving Federal Enterprise Architecture Policy as documented in "The Common Approach to Federal Enterprise Architecture". The material presented here is obsolete and only useful for historical reference and is not the current policy in use by the Department of the Treasury. The Treasury Enterprise Architecture Framework (TEAF) an architectural framework that supports Treasury's business processes in terms of products. This framework guides the development and redesign of the business processes for various bureaus in order to meet the requirements of recent legislation in a rapidly changing technology environment. The TEAF prescribes architectural views and delineates a set of notional products to portray these views. The TEAF describes provides:  The TEAF's functional, information and organizational architecture views collectively model the organizations processes, procedures, and business operations. By grounding the architecture in the business of the organization, the TEAF defines the core business procedures and enterprise processes. Through its explicit models, a TEAF-based architecture enables the identification and reasoning of enterprise- and system-level concerns and investment decisions. The Treasury Enterprise Architecture Framework (TEAF) is derived from earlier treasury models, such as the US Treasury model (TISAF) released 1997, and the Federal Enterprise Architecture Framework (FEAF), released in 1999. The first version of the TEAF was released July 2000. In the new millennium the Treasury Enterprise Architecture Framework (TEAF) has developed into the Treasury Enterprise Architecture (TEA), which aims to establish a roadmap for the modernization and optimization of the U.S. Treasury Department's business processes and IT environment. The Treasury Enterprise Architecture will provide a framework to guide IT investment planning, streamline systems, and ensure that IT programs align with business requirements and strategic goals. Effective management and strategic decision making, especially for information technology (IT) investments, require an integrated view of the enterprise—understanding the interrelationships among the business organizations, their operational processes, and the information systems that support them. An Enterprise Architecture formalizes the identification, documentation, and management of these interrelationships, and supports the management and decision processes. The Enterprise Architecture provides substantial support for evolution of an enterprise as it anticipates and responds to the changing needs of its customers and constituents. The Enterprise Architecture is a vital part of the enterprise's decision-making process, and will evolve along with the enterprise's mission.