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Development of an expert planning system for OSSAThis paper presents concepts related to preliminary work for the development of an expert planning system for NASA's Office for Space Science and Applications (OSSA). The expert system will function as a planner's decision aid in preparing mission plans encompassing sets of proposed OSSA space science initiatives. These plans in turn will be checked against budgetary and technical constraints and tested for constraint violations. Appropriate advice will be generated by the system for making modifications to the plans to bring them in line with the constraints. The OSSA Planning Expert System (OPES) has been designed to function as an integral part of the OSSA mission planning process. It will be able to suggest a best plan, be able to accept and check a user-suggested strawman plan, and should provide a quick response to user request and actions. OPES will be written in the C programming language and have a transparent user interface running under Windows 386 on a Compaq 386/20 machine. The system's sorted knowledge and inference procedures will model the expertise of human planners familiar with the OSSA planning domain. Given mission priorities and budget guidelines, the system first sets the launch dates for each mission. It will check to make sure that planetary launch windows and precursor mission relationships are not violated. Additional levels of constraints will then be considered, checking such things as the availability of a suitable launch vehicle, total mission launch mass required vs. the identified launch mass capability, and the total power required by the payload at its destination vs. the actual power available. System output will be in the form of Gantt charts, spreadsheet hardcopy, and other presentation quality materials detailing the resulting OSSA mission plan.
Document ID
19890006187
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Groundwater, B.
(Science Applications International Corp. Washington, DC., United States)
Lembeck, M. F.
(Science Applications International Corp. Washington, DC., United States)
Sarsfield, L.
(Science Applications International Corp. Wayne, PA., United States)
Diaz, Alphonso
(NASA Headquarters Washington, DC United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1988
Publication Information
Publication: NASA, Marshall Space Flight Center, Fourth Conference on Artificial Intelligence for Space Applications
Subject Category
Administration And Management
Accession Number
89N15558
Funding Number(s)
CONTRACT_GRANT: NASW-4092
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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