Downloaded from https://www.everyspec.com MIL-HDBK-502: A MIL-HDBK-502: A CQUISITION CQUISITION L OGISTICS OGISTICS The functional decomposition of requirements continues to the lowest logical breakdown of a performance function. At this point the top-down design becomes a bottom-up build. Synthesis of the physical design begins when hardware items are selected to provide identified functions and are arranged in a physical relationship with one another. During this stage of the design’s development, analysis is used to verify adherence to each successively higher level of requirement. Estimates and projections are refined and verified through demonstrations and tests.
System analysis and control activities in a program serve as a basis for evaluating alternatives, selecting the best solution, measuring progress, and documenting design decisions. These activities include: Trade-off studies among requirements, design alternatives, and other cost, schedule and performance related issues. Risk management that, throughout the design process, identifies and evaluates potential sources of technical risks based on the technology being used, the design, manufacturing, test and support processes being used, and risk mitigation efforts. Configuration management to control the system products, processes and related documentation.
The configuration management effort includes identifying, documenting, and verifying the functional and physical characteristics of an item; recording the configuration of an item; and controlling changes to an item and its documentation. It provides a complete audit trail of decisions and design modifications. 4-13 Process Input Re System ements Analysis Re quir eme nts Analysis ontrol ance) hesis hesis Synt ctional An Allocatio alysis/ n Fun