MIL-HDBK-502 - Barringer and Associates, Inc.

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MIL-HDBK-502: ACQUISITIONALOGISTICSIf a development program is the result of the market investigation, thedesign process should be initiated as described in Section 4. Therequirements should be decomposed and analyzed to determine theirsupportability characteristics (Requirements Analysis segment of thesystems engineering process). This information should be used to initiatethe support system design. The process will continue as the hardware,software, and support system designs evolve from the requirementsthrough the functional design (FA/A) to the final or physical system design(Synthesis). The analyses should be performed at the system level andapplied to the successively more detailed design components.The specific supportability analyses to be performed on an element of asystem’s design are those which most correspond to the level of thatelement’s design. For example, when the design data is of a functionalnature, identify the functional support requirements and place specialemphasis on the identification of new or unique support functionrequirements. When the available design data represents a physical design,identify and quantify operations and sustainment support resourcerequirements.The supportability analyses that were discussed earlier under a commercialacquisition (one that lacked necessary technical publications information)are also applicable here. For those system elements for which support datais required:• Identify hardware candidates and support functions.• Conduct repair analysis.• Perform functional analysis and task analysis on repairable itemsfor selected support system design.Another area of supportability analyses that applies to both commercial anddevelopmental acquisitions is assessments of system supportability. Theseare considered part of the Systems Analysis and Control portion of thesystems engineering process. This portion of the supportability analysesprocess is conducted throughout a system’s life cycle and is used to:• demonstrate the validity of the analysis.• support current planning decisions.• maintain the accuracy of the information products developedusing the analysis results.• support the assessment of alternative concepts and proposedchanges.Assessment and verification of supportability starts with early planning forverification of support concepts and continues on an iterative basis.Assessment and verification methods and techniques encompass technical5-11
MIL-HDBK-502: ACQUISITIONALOGISTICSreviews, modeling, simulation, demonstration, and testing. Assessment andverification procedures, like all supportability analysis activities, need to betailored to the type of acquisition, the program phase, and the risk elementsbeing addressed.Supportability demonstration and test requirements and criteria aredeveloped for the particular performance characteristics to be tested. Theserequirements are included in the Test and Evaluation Master Plan for theprogram. All supportability performance requirements, including thosewhich apply to the support system, should be tested and verified.Results of supportability assessment and verification activities are used toupdate other supportability analyses information and estimates. Issuesresulting from analysis of supportability assessment results are used todevelop improvement recommendations.5.3 Systems Engineering Strategy—Supportability AnalysesInputsA strategy for performing systems engineering activities should bedeveloped early in the program by the performing organization. As such,selected supportability analyses should be identified as input to the systemsengineering strategy. The supportability analyses input should be anintegral part of the program’s systems engineering strategy. The strategyinput should identify, and give the rationale for, the inclusion or exclusionof specific analyses. Each activity that is included should be assigned to anorganization responsible for its conduct.Supportability analyses in each program phase should be scoped to theobjectives and level of design anticipated. The strategy should address allsupportability analyses needed to analyze, define, and verify thesupportability thresholds and objectives for a system and to assess the risksin accomplishing the thresholds and objectives. Select the supportabilityobjectives and analyses to include in the strategy based on the followingconsiderations:• The probable hardware and software designs, support concepts, andoperational approaches for the new total system which include grossestimates of the reliability and maintainability, O&S costs, logisticsupport resources, and readiness characteristics of each total systemcomponent design and the operational concept.• The availability, accuracy, and relevance of readiness, O&S cost, andlogistic support resource data required to perform the proposedsupport analyses.5-12
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