Enterprise architecture

Business: Strategy maps, goals, corporate policies Functional decompositions (e.g. IDEF0 , SADT ), capabilities and organizational models Business process es Organization cycles, periods and timing Suppliers of hardware , software , and services
Applications: Application software inventories and diagrams Interfaces between applications - that is: events, messages and data flows Intranet , Extranet , Internet , eCommerce , EDI links with parties within and outside of the organization
Information: Metadata Data model s: conceptual, logical, and physical
Technical: Hardware, platforms, and hosting: server s, and where they are kept Local and wide area network s, Internet connectivity diagrams Operating System Infrastructure software: Application server s, DBMS , etc..

Enterprise Architecture is the practice of applying a comprehensive and rigorous method for describing a current and/or future structure and behavior for an organization's processes, information systems, personnel and organizational sub-units, so that they align with the organization's core goals and strategic direction. Although often associated strictly with information technology, it relates more broadly to the practice of business optimization in that it addresses business architecture, performance management, organizational structure and process architecture as well.