Accession Number : ADA328982

Title :   Ensuring NMD Affordability Through the PSAoRm Process,

Corporate Author : BALLISTIC MISSILE DEFENSE ORGANIZATION WASHINGTON DC

Personal Author(s) : Manuel, Henry ; Sliney, Jack ; Cummings, John ; Grover, Dave

PDF Url : ADA328982

Report Date : 1997

Pagination or Media Count : 8

Abstract : In 1996, the National Missile Defense (NMD) Program was redirected from a Technology Readiness Program focusing on demonstrating technologies to a Deployment Readiness Program (DRP). The DRP's objective is developing and maintaining a capability to field the system three years following a deployment decision. With this redirection came the need to balance cost and performance in the new Acquisition Reform environment. This led to system characteristics that prompted a change in the way that Reliability, Availability and Maintainability parameters are treated in the system engineering process. In the Technology program, hardware developers were most concerned with single shot reliability to ensure a successful test. Deployment Readiness, however, requires that hardware and software be developed to support overall life cycle System Effectiveness. System designs must be maintainable and must incorporate redundancy and backup modes and circuits to efficiently provide the very high probability of threat negation required by the US Space Command, the NMD User. In order to meet System Effectiveness requirements of the large, complex NMD system, the User and the Ballistic Missile Defense Organization's NMD Joint Program Office (developer) agreed to replace the requirement for specified system level Operational Availability with a balanced approach focusing on mission effectiveness. This approach also provides the greatest possible trade space where contractors are permitted the freedom to balance Performance, Survivability, Operational Availability, and Mission Reliability, commonly referred to as the PSA(sub o)R(sub m). This paper describes the NMD approach and rationale, and recommends it as the optimal approach for meeting user system effectiveness requirements for very large, complex systems.

Descriptors :   *ANTIMISSILE DEFENSE SYSTEMS, *OPERATIONAL READINESS, *INTERCONTINENTAL BALLISTIC MISSILES, DEPLOYMENT, DECISION MAKING, LIFE EXPECTANCY(SERVICE LIFE), MAINTAINABILITY, RELIABILITY, THREAT EVALUATION, NATIONAL DEFENSE.

Subject Categories : Antimissile Defense Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE