NDLI: Safety assessment, reliability, and the probability-operation diagram

Content Provider	IEEE Xplore Digital Library
Author	Vassakis, A.G.
Copyright Year	1963
Abstract	The probability-operation (P-O) diagram is introduced. New reliability and safety definitions are given in relation to this diagram. Specific problems in safety assessment are shown and new practices are proposed. Safety-assessment must be dealt with independently of the reliability-assessment, except for one specific case. The safety specification described in the P-O diagram covers the final results and, as such, it includes failures caused by the operational environment or even by operator error. This means that a top-down (functional, anti-causal, deductive, backward) method is more effective for safety assessment. An independent safety-assessment (especially when a top-down method has been used) shows the proper information which must be: collected by an accident investigation as well as during usual system-use, and stored in a data-bank, so that an acceptable system-safety monitoring function can be carried out. This is proposed as a deterministic method of selecting the statistical information to be kept in a data bank. An existing successful P-O diagram (which is in accordance with the safety-monitoring results) represents a good system-safety model for the trend study and for describing future safety requirements.
Sponsorship	IEEE Reliability Society
Starting Page	90
Ending Page	94
Page Count	5
File Size	455646
File Format	PDF
ISSN	00189529
Volume Number	45
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Airplanes Air safety FAA Europe Monitoring Accidents Power system modeling Power generation Probability Computer aided analysis
Content Type	Text
Resource Type	Article
Subject	Safety, Risk, Reliability and Quality Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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