They’re playing together nicely – the Army, Navy, and Air Force, that is – in their efforts to bring a common architecture to electronic systems across all three services. These efforts are resulting in three main initiatives: the Sensor Open Systems Architecture (SOSA); Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR)/Electronic Warfare (EW) Modular Open Suite of Standards (CMOSS); and the Hardware Open Systems Technology (HOST).