AS 9000, Aero Space, is an international standard for aerospace management systems that is a widely adopted and standardized quality management system for the aerospace sector. It was developed in 1998 by Society of Automotive Engineers (Allied-Signal. Allison Engine Company, Boeing, General Electric Aircraft Engines, Lockheed Martin, McDonnell Douglas, Northrop Grumman, Pratt Whitney, Rockwell Collins, Sikorsky Aircraft, Smartronix, and Hamilton Sundstrand). The intent and concept behind AS 9000 are similar to Boeing's D1-9000. The standard is based in ISO 9000, with 27 additional requirements unique to the aerospace industry. The intent is to standardize and streamline many of the other aerospace quality management standards.