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Reliability tool for initial quantified functional risk and hazard analysis

Execution of NASA's Vision for Space Exploration through Project Constellation involves the integration of multiple mission architecture and vehicle design teams. One of these is the Altair Lunar Lander Design Team, which had chosen to approach the vehicle development through a process of risk-informed design. Following the “de minimus” concept, a single string minimally functional vehicle that can perform all the mission requirements was created as a baseline design. This exercise, performed by the Altair Design Team, ensured the minimal mass vehicle would fit within the design constraints and established what mass margin would be available for enhancement of the design.