NIST Enterprise Architecture Model
NIST Enterprise Architecture Model is a reference model for Enterprise Architecture, that illustrates the interrelationship of enterprise business, information, and technology environments.[1]
This model developed by the National Institute of Standards and Technology (NIST) in 1989, became in the 1990s widely accepted and promoted within the US Federal Government as a Enterprise Architecture management tool.[1]
This NIST Enterprise Architecture Model is the foundation of several US Federal Enterprise Architecture frameworks, for exampe the Federal Enterprise Architecture Framework.[1]
Overview
The NIST Enterprise Architecture Model is a five-layered model allows for organizing, planning, and building an integrated set of information and information technology architectures. The five layers are defined separately but are interrelated and interwoven.[1] This interrelation between the architecture layers is defined in the model:[2]
- Business Architecture drives the information architecture
- Information architecture prescribes the information systems architecture
- Information systems architecture identifies the data architecture
- Data Architecture suggests specofic data delivery systems, and
- Data Delivery Systems (Software, Hardware, Communications) support the data architecture.
The hierachy in the model is based on the notion that an organization operates a number of business functions, each function requires information from a nuber of source, and each of these sources may operation one or more operation systems, which in turn contain data organized and stored in any number of data systems.[3]
History
The origin from the NIST Enterprise Architecture Model was a NIST research project in 1989, published as the NIST Special Publication 500-167, Information Management Directions: The Integration Challenge.[2] In this project two Frameworks were preposed: a Zachman Framework adressing enterprise engineering and a single dimensional classification of subject areas supporting Information Strategy, what latter became known as the NIST Framework. The NIST Framework was picked up by several US Federal Agencies and used as the basis for their information strategy.[4]
Applications
NIST Enterprise Architecture Model is applicated the following frameworks:
- FDIC Enterprise Architecture Framework is the Enterprise Architecture framework of the Federal Deposit Insurance Corporation (FDIC).
- FEAF : The 1999 documentation of the Federal Enterprise Architecture Framework Version 1.1 explains how the NIST Framework is used as a foundation of the FEA Framework.[1]
- NWS Enterprise Architecture : Enterprise Architecture of the National Weather Service[6]
- Treasury Enterprise Architecture Framework (TEAF), is the framework for treasury, published by the the US Department of the Treasury in July 2000.[7]
References
- ^ a b c d e f The Chief Information Officers Council (1999). Federal Enterprise Architecture Framework Version 1.1. September 1999.
- ^ a b Elizabeth N. Fong and Alan H. Goldfine (1989) Information Management Directions: The Integration Challenge. National Institute of Standards and Technology (NIST) Special Publication 500-167, September 1989.
- ^ John O'Looney (2002). Wiring Governments: Challenges and Possibilities for Public Managers. Greenwood Publishing Group. p.67.
- ^ "Exclusive Interview with John Zachman" by Roger Session. In: Perspectives of the Internation Association of Software Architects. April 2006.
- ^ OIG (2005). Implementation of E-Government Principles. May 2005
- ^ Bobby Jones (2003) NWS ENTERPRISE ARCHITECTURE.
- ^ US Department of the Treasury Chief Information Officer Council (2000). Treasury Enterprise Architecture Framework. Version 1, July 2000.