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OCA Mirroring System to be Installed at ISS Mission Control

In a meeting with Brian Anderson (Chief Engineer, Mission Operations Directorate) and Tim Hall of Johnson Space Center (JSC), it was decided that the OCA Mirroring System (OCAMS) will be installed for operations in the International Space Station (ISS) Mission Control Center (MCC) by the end of the first quarter of 2008. With the OCAMS system, the time spent by the Orbital Communications Adapter (OCA) Officer mirroring files uplinked and downlinked to the Space Station is predicted to go from 6% of their shift time to less than 0.6% of their shift time.

BACKGROUND: The Ames Mission Operations Design and Analysis Toolkit (MODAT) project team is developing the Agent-based OCA Mirroring System (OCAMS) with the Brahms multi-agent language developed in the Work Systems Design and Evaluation group. Using the newly developed Simulation to Implementation Engineering method, the MODAT team developed an in-silico work process and practice simulation of the OCA Officer’s work in the Brahms environment, based on observations of the actual work in Mission Control. Based on statistics generated from this simulation model and collaborative design with the OCA Team at JSC, they designed an agent-based workflow system that supports the newly designed and improved OCA work process. This design was then implemented as a second in-silico simulation model in Brahms. The second simulation was validated against the same data set as the first, and a 10-fault time improvement of the OCA mirroring function was predicted. Based on these results, the OCAMS agent-based simulation model has been turned into a distributed agent-based workflow system that will now be tested and implemented in operations in the MCC at JSC.

NASA PROGRAM FUNDING: This project is funded as the OCA Mirroring System (OCAMS) ITA 9277 between JSC’s MOD and the Ames Intelligent Systems Division.

Contact: Maarten Sierhuis


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