It’s hard to escape the headlines around Modular Open Systems Approach (MOSA), open standards, and individual initiatives such as those from The Open Group FACE™ Consortium, the creators of the FACE Technical Standard. In 2004, the United States government started a large effort to define and implement MOSA as a requirement within military systems with the definitive document titled MOSA Principles defined in OSD Open Systems Joint Task Force Program Manager’s Guide: A MOSA to Acquisition.