Coordinated Multi-Source Maintenance on Demand (CMMD) explores how to help NASA Space Exploration units balance between multiple sources of demands on available resources. Demands arise from the competing interests of science, exploration, maintenance and safety upon teams of humans and robots which must be self-supporting for extended operations on the Moon and Mars.

The research has applications to mission scenarios for Crew Exploration Vehicle and other systems including fleets of unmanned and manned vehicles and robotic probes. Research issues include distributed architectures for information exchange, mixed-initiative planning, open-world distributed planning, minimally-disruptive plan and schedule repair, interleaved planning and scheduling processes, and collaborative context-sensitive interfaces to decision support tools.

CMMD is a collaboration of USC ISI, Vanderbilt University , and NASA Ames and Johnson Space Centers , scheduled to extend over four years. The current award represents the university portion of the first year of effort; the NASA Centers are funded separately.