TY - GEN
T1 - Software for use of expert opinion in reliability
AU - Aboura, Khalid
AU - Singpurwalla, Nozer D.
AU - Soyer, Refik
PY - 1989
Y1 - 1989
N2 - In this paper we discuss an interactive PC-Based software for reliability assessment of items whose life lengths are described by a Weibull distribution. We demonstrate a software named 'IPRA' that was developed at the Institute for Reliability and Risk Analysis, the George Washington University. The novel feature of the program pertains to the incorporation of informed judgement or expert opinion into the analysis, and the provision for incorporating the analyst's opinions on the expertise of the experts. The code is user friendly and leads a reliability analyst through the process of eliciting expert opinion on the deterioration/improvement rate and the median life of the items. The program also allows use of failure and/or survival data on identical items and provides an interactive and time-sequential merging of the modulated expert opinion with the data. It provides tabular and graphical displays of prior and posterior reliability functions and reliability interval distributions for different mission times. 'IPRA' also provides feedback to the expert, and in the light of new data, the analyst can call upon the program to update the results.
AB - In this paper we discuss an interactive PC-Based software for reliability assessment of items whose life lengths are described by a Weibull distribution. We demonstrate a software named 'IPRA' that was developed at the Institute for Reliability and Risk Analysis, the George Washington University. The novel feature of the program pertains to the incorporation of informed judgement or expert opinion into the analysis, and the provision for incorporating the analyst's opinions on the expertise of the experts. The code is user friendly and leads a reliability analyst through the process of eliciting expert opinion on the deterioration/improvement rate and the median life of the items. The program also allows use of failure and/or survival data on identical items and provides an interactive and time-sequential merging of the modulated expert opinion with the data. It provides tabular and graphical displays of prior and posterior reliability functions and reliability interval distributions for different mission times. 'IPRA' also provides feedback to the expert, and in the light of new data, the analyst can call upon the program to update the results.
UR - https://www.scopus.com/pages/publications/0024941820
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0024941820&origin=recordpage
M3 - RGC 32 - Refereed conference paper (with host publication)
VL - 43
SP - 527
EP - 532
BT - Annual Quality Congress Transactions
PB - Publ by ASQC
T2 - 43rd Annual Quality Congress Transactions 1989
Y2 - 8 May 1989 through 10 May 1989
ER -