NASA has met with limited success in efforts to embrace an earned value management (EVM) system capable of predicting cost overruns and schedule slips on major spaceflight projects ranging from the Mars Atmospheric and Volatile Evolution Mission to the troubled James Webb Space Telescope, according to a General Accountability Office audit prepared for House and Senate oversight panels. The agency’s portfolio included 21 major projects projected to cost a total of $19.4 billion at ...


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