Integration of Risk Assessment Tools in the Continuous Risk Management Process

摘要

Marshall Space Center (MSFC) of the National Aeronautics and Space Administra ion (NASA) is currently implementing the Continuous Risk Management (CRM) Program, a systematic and comprehensive process developed recently by the Carnegie Mellon University (ref.l, 2). NASA has adopted the Risk Management (RM) approach for implementation at MSFC. There is, however, insufficient guidance on how to integrate these risk analysis tools in the Continuous Risk Management (CRM) Process. As a result, often the responsible person makes arbitrary decisions in applying these analytical tools during the process. But how these safety and risk assessment tools are applied makes a significant difference in :he efficacy of the risk management function. The CRM directives do not provide explicit instructions to he analyst for such critical decisions as: what events are to be included in the analysis and to what level of details the analysis should be continued This study aimed to develop guidelines for the three most frequently used risk assessment tools: Failure Mode and Effect Analysis (FMEA), Fault Tree Analysis (FTA), and Probability Risk Assessment (PRA) in the context of the CRM. Specific directions have been c eveloped for the application of each tool in each stage of the CRM process: (a) risk identification, (b) risk analysis, (c) risk tracking, and (d) risk control.