The Electronic Government Act of 2002 defines an enterprise architecture as:
"a strategic information asset base which defines the mission; the information necessary to perform the mission; the technologies necessary to perform the mission; and the transitional processes for implementing new technologies in response to changing mission needs and includes: a baseline architecture; a target architecture; and a sequencing plan."

Information Technology System Development Life Cycle Guide (January 2007) (PDF 1,384KB)

Enterprise Architecture Transition Plan
March 2007 Version 1.5 (PDF 1,824KB)

Appendix E - Segment Architecture
Summaries (PDF 4,231KB)

Federal Enterprise Architecture Project Management Office

FEA Practice Guidance - November 2007 (PDF 1,639)

Consolidated Reference Model Version 2.3 (October 2007) (PDF 655KB)

USDA Target Architecture Framework
(Microsoft PowerPoint 3.26KB)

USDA Target Architecture Definitions (Word 238KB)

www.egov.gov

• Performance Reference Model version 1.0
• Business Reference Model version 2.0
• Service Component Reference Model version 1.0
• Data Reference Model version 2.0 (PDF 1.4MB)
• OMB Memoranda M-06-02, "Improving Public Access to and Dissemination of Government Information and Using the Federal Enterprise Architecture Data Reference Model". (PDF 63KB)
• Technical Reference Model version 1.1

EA Program Managment Office staff. Select link to view larger image.

http://www.ocio.usda.gov/e_arch/index.html
Last Modified: 06/02/2008