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Ad Hoc modeling, expert problem solving, and R&T program evaluationA simplified cost and time (SCAT) analysis program utilizing personal-computer technology is presented and demonstrated in the case of the NASA-Goddard end-to-end data system. The difficulties encountered in implementing complex program-selection and evaluation models in the research and technology field are outlined. The prototype SCAT system described here is designed to allow user-friendly ad hoc modeling in real time and at low cost. A worksheet constructed on the computer screen displays the critical parameters and shows how each is affected when one is altered experimentally. In the NASA case, satellite data-output and control requirements, ground-facility data-handling capabilities, and project priorities are intricately interrelated. Scenario studies of the effects of spacecraft phaseout or new spacecraft on throughput and delay parameters are shown. The use of a network of personal computers for higher-level coordination of decision-making processes is suggested, as a complement or alternative to complex large-scale modeling.
Document ID
19830060086
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Silverman, B. G.
(George Washington University Washington, DC, United States)
Liebowitz, J.
(George Washington Univ. Washington, DC, United States)
Moustakis, V. S.
(George Washington Univ. Washington, DC, United States)
Date Acquired
August 11, 2013
Publication Date
August 1, 1983
Publication Information
ISSN: 0018-9391
Subject Category
Administration And Management
Accession Number
83A41304
Funding Number(s)
CONTRACT_GRANT: NGT-09-010-800
CONTRACT_GRANT: NAS5-27200
Distribution Limits
Public
Copyright
Other

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