MODULAR AVIONICS SYSI'EM ARCHITEClUKE DECISION SUPPORT SYSTEM

This study develops a methodology for evaluating modular avionics applications in terms of life cycle cost and system effectiveness. The Methodology is to be used to compare alternative modular architecture strategies as well as conventional strategies for introducing avionics into new or existing weapon systems. The study is one of a series of tasks commissioned by ASD/AX as part of the pre FSD investigation of modular avionics alternatives. The process described herein is intended to be a flexible means of evaluating postulated alternatives for Air Force wide implementation of modular avionics. The analysis is expected to be erformed using data normally available during the conceptual phase oFa development pro ram Avionics has had a relatively small impact on weapon system efkctiveness but that impact is increasing. Functions performed by avionics have been limited to navigation, communications, and some portion of fire control. The role of avionics, however, has steadily increased with each new generation of aircraft. Today avionics is an integral part of fire control, flight control, engine control, and defensive countermeasures in addition to navigation and communication systems. Modular avionics alternatives offer potential improvements in capability by allowing common tasks to be performed by identical hardware and software elements. Commonality of avionics elements within weapon systems and among weapon systems may reduce both development cost and development risk. Reliable common avionics elements offer the potential of reducing the avionics support burden. The impact on the overall weapon system effectiveness has not yet been determined.