REG NASA-LLIS-5061-2012 Lessons Learned - Supportability Requirements.pdf

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1、Public Lessons Learned Entry: 5061 Lesson Info: Lesson Number: 5061 Submitting Organization: KSC Submitted by: Jenni Palmer Subject: Supportability Requirements Abstract: One of the major goals of the Constellation Program was to reduce life-cycle costs and the logistics footprint. A comprehensive s

2、et of supportability requirements was needed at the Program level to minimize the logistics footprint life-cycle costs of ground systems at the launch site. Description of Driving Event: The Program requirements, CxP 70000 Constellation Architecture Requirements Document (CARD), outlines guidance fo

3、r several supportability design criteria instead of developing firm requirements For example: Commonality/Interchangeability requirements. Lesson(s) Learned: Supportability requirements that affect life cycle costs need to be defined in Program level requirements documentation. Life Cycle Costs are

4、affected by supportability factors, such as commonality and interchangeability. If these factors are not stated as requirements, the design organization is not forced to incorporate suggestions (guidance) into the design. Recommendation(s): Develop a comprehensive set of supportability requirements

5、in Program level requirements documentation, and flow down to each major system. During the design phase, supportability performance requirements can be traded against other performance requirements of the system. The Program will have a more accurate picture of life-cycle costs that are traded for

6、system performance. Evidence of Recurrence Control Effectiveness: N/A Documents Related to Lesson: N/A Mission Directorate(s): Exploration Systems Additional Key Phrase(s): Additional Categories. Additional Categories.Logistics Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Additional Info: Project: Constellation Approval Info: Approval Date: 2012-04-05 Approval Name: mbell Approval Organization: HQ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-