System Architect is an enterprise architecture tool that is use by the business and IT departments of major commercial corporations, government civilian agencies, and government military agencies to build models of all aspects of their business operations and the systems, applications, and databases that support them. System Architect is used to build DoDAF architectures. The Architecture Development and Analysis Survey, conducted by MITRE Corporation for the US Office of the Assistant Secretary of Defense for Networks & Information Integration (OASD NII) and revealed at the CISA worldwide conference on December 1, 2005, reported that out of 96 programs building DoDAF architectures responding to the survey, 77% used System Architect, either by itself (48%) or in conjunction with another modeling tool (29%).