Downloaded from https://www.everyspec.com MIL-HDBK-502: A MIL-HDBK-502: A CQUISITION CQUISITION L OGISTICS OGISTICS Data management to capture and control the technical baseline (configuration documentation, technical data, and technical manuals), provide data correlation and traceability, and serve as a ready reference for the systems engineering effort. The establishment of performance metrics to provide measures of how well the technical development and design are evolving relative to what was planned and relative to meeting system requirements in terms of performance, risk mitigation, producibility, cost, and schedule.
The establishment of interface controls to ensure all internal and external interface requirement changes are properly recorded and communicated to all affected configuration items. Structured program review to demonstrate and confirm completion of required accomplishments and their exit criteria as defined in program planning. Determining the best set of planned logistic resources for a system is the function of the acquisition logistics discipline of systems engineering. It is accomplished through analysis of those design characteristics which generate a need for, or are associated with, providing operational support to the total system.
These design characteristics are developed by many different disciplines pursuing a wide range of systems engineering activities. Individually they may be viewed as either hardware, software, or support system design characteristics. Collectively they represent the “supportability” of a total system. 4.3.1 Supportability Supportability is the degree to which system design characteristics and planned logistics resources meet system peacetime and wartime requirements. Supportability is the capability of a total system design to support operations and readiness needs throughout the system’s service life at an affordable cost.
It provides a means of assessing the suitability of a total system design for a set of operational needs within the intended operations and support environment (including cost constraints). Supportability characteristics include many performance measures of the individual elements of a total system. For example: Repair Cycle Time is a support system performance characteristic independent of the hardware system. Mean Time Between Failure and Mean Time to Repair are reliability and maintainability characteristics, respectively, of the system hardware, but their ability to impact operational support of the total system makes them also supportability characteristics.
Supportability characteristics of the total system interrelate the characteristics of the individual designs to provide a top-level assessment of the balance in a total system’s design. Operational availability (A o ) and life cycle cost are generally accepted as measures of total system 4-14