DocumentCode :
3265437
Title :
Creating an advanced diagnostic knowledge base from existing fault trees: a case study
Author :
Beniaminy, Israel ; Kanonicz, Gabriel ; Neuhaus, Raz
Author_Institution :
IET-Intelligent Electron., Anaheim, CA, USA
fYear :
1999
fDate :
1999
Firstpage :
153
Lastpage :
159
Abstract :
The level of readiness and availability of equipment and systems is strongly affected by troubleshooting and problem resolution quality. Until recently, the most pervasive method of supporting technicians in achieving high problem resolution performance has been the creation of fault trees. It is now accepted that knowledge-based problem resolution has many advantages over the fault tree method, including a vast acceleration in creating the troubleshooting support tool, easier modification, higher accuracy, and learning capability. However, there still exists a large body of problem resolution knowledge “frozen” into fault charts. This paper describes a systematic and automatic method of converting this knowledge into a model-based diagnostics knowledge base and describes one case in which the TechMate intelligent troubleshooting support software was used to facilitate this conversion. The results prove the validity of this method and show the advantages in terms of automatic minimization of time required to complete fault isolation as well as increased diagnostics accuracy and power to handle unforeseen cases and multiple faults, and in terms of ease of modification. The results of this empirical study are compared to theoretical studies of similar methods
Keywords :
automatic test software; case-based reasoning; diagnostic expert systems; fault trees; maintenance engineering; model-based reasoning; COTS product; TechMate intelligent troubleshooting support software; advanced diagnostic knowledge base; ease of modification; equipment maintenance; existing fault trees; fault isolation; increased diagnostics accuracy; model-based diagnostics knowledge base; multiple faults; problem resolution knowledge; systematic automatic method; Acceleration; Availability; Computer aided software engineering; Costs; Engineering management; Fault trees; Inventory management; Logistics; Quality management; Technology management;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
AUTOTESTCON '99. IEEE Systems Readiness Technology Conference, 1999. IEEE
Conference_Location :
San Antonio, TX
ISSN :
1080-7725
Print_ISBN :
0-7803-5432-X
Type :
conf
DOI :
10.1109/AUTEST.1999.800372
Filename :
800372
Link To Document :
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