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Software For Fault-Tree Diagnosis Of A SystemFault Tree Diagnosis System (FTDS) computer program is automated-diagnostic-system program identifying likely causes of specified failure on basis of information represented in system-reliability mathematical models known as fault trees. Is modified implementation of failure-cause-identification phase of Narayanan's and Viswanadham's methodology for acquisition of knowledge and reasoning in analyzing failures of systems. Knowledge base of if/then rules replaced with object-oriented fault-tree representation. Enhancement yields more-efficient identification of causes of failures and enables dynamic updating of knowledge base. Written in C language, C++, and Common LISP.
Document ID
19930000401
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Iverson, Dave
(NASA Ames Research Center, Moffett Field, CA.)
Patterson-Hine, Ann
(NASA Ames Research Center, Moffett Field, CA.)
Liao, Jack
(California Univ.)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 7
ISSN: 0145-319X
Subject Category
Mathematics And Information Sciences
Report/Patent Number
ARC-13019
Accession Number
93B10401
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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