Nist architecture

NIST Enterprise Architecture Model ( NIST EA Model) is a late-1980s Developed late-1980s by the Intro [ ] The NIST Enterprise Architecture Model is a five-layered model for • Business Architecture drives the information architecture • Information architecture prescribes the information systems architecture • Information systems architecture identifies the data architecture • Data Architecture suggests specific data delivery systems, and • Data Delivery Systems (Software, Hardware, Communications) support the data architecture. The hierarchy in the model is based on the notion that an organization operates a number of business functions, each function requires information from a number of source, and each of these sources may operate one or more operation systems, which in turn contain data organized and stored in any number of data systems. History [ ] The NIST Enterprise Architecture Model is initiated in 1988 in the fifth workshop on Information Management Directions sponsored by the NIST in cooperation with the Information Management Directions: The Integration Challenge. The emerging field of information management [ ] With the proliferation of One of the first overall approaches to building • External schema for user views • • Internal schema that defines physical storage structures At the center, the conceptual schema defines the Since the 1970s the NIST had held a series of four workshops on Database and Information Management Directions. Each of the workshops addre...