Commonality of MASA modules

The Modular Avionics System Architecture (MASA) program is evaluating the use of technology and design improvement features from the Pave Pillar, VHSIC, and the Joint Integrated Avionics Work Group as retrofits to existing aircraft. The commonality aspects of the MASA program are discussed. The results of commonality are illustrated through a sequencing scenario of the study cases in which later, integrated developments reuse designs or modules from previous systems. The areas for potential savings attributable to commonality are described. It is noted that the reuse benefits of the standard function modules offset the initial advantage of lower unit costs for point designs