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Within NASA's Aviation Safety Program, the Aviation System Monitoring and Modeling (ASMM) Project addresses the need to provide decision makers with the tools to identify and evaluate predisposing conditions that could lead to accidents. This Project is developing a set of automated tools to facilitate efficient, comprehensive, and accurate analyses of data collected in large, heterogeneous databases throughout the National Aviation System. This report is a brief overview of the ASMM Project as an introduction to the rest of the presentations in this session on one of its key elements---the Performance Data Analysis and Reporting System (PDARS).

This paper addresses the special nature of the human-machine relationship during a trip to Mars. In particular, the potential for monotony and boredom during a long-duration space voyage and the effect on motivation and productivity can be important considerations to the health and welfare of the crew. On the voyage to Mars, there are likely to be extended periods of low-level activity for the crew during which it will be difficult to prevent monotony and boredom. These circumstances are different from those typically addressed in the human-machine designs which were concerned with reducing the human workload. For the voyage to Mars, we may be looking for a design that will purposefully maintain some level of workload for the crew as a preventive measure for the deterioration of productivity that comes with boredom.