NASA Urged To Define Ares 1 and Orion Risks, Requirements

摘要

NASA's plan to start preliminary design review of its space shuttle replacement hardware by the end of the summer faces challenges due to uncertainty over the vehicles' requirements, according to a U.S. Government Accountability Office (GAO) report released April 3. The report was another warning to NASA that it should fully define requirements and assess risks associated with its Ares 1 launch vehicle and Orion Crew Exploration Vehicle before moving into preliminary design review, a major step in development in which the customer's needs are matched with the developer's resources of time, money, technology and people.