Deriving a frequentist conservative confidence bound for probability of failure per demand for systems with different operational and test profiles

Bishop, P. G. & Povyakalo, A. A. (2016). Deriving a frequentist conservative confidence bound for probability of failure per demand for systems with different operational and test profiles. Reliability Engineering & System Safety,

This is the latest version of this item.

[img]
Preview
Text - Accepted Version
Available under License : See the attached licence file.

Download (283kB) | Preview
[img] Text (Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence) - Other
Download (201kB)

Abstract

Reliability testing is typically used in demand-based systems (such as protection systems) to derive a confidence bound for a specific operational profile. To be realistic, the number of tests for each class of demand should be proportional to the demand frequency of the class. In practice however, the actual operational profile may differ from that used during testing. This paper provides a means for estimating the confidence bound when the test profile differs from the profile used in actual operation. Based on this analysis the paper examines what bound can be claimed for different types of profile uncertainty and options for dealing with this uncertainty. We also show that the same conservative bound estimation equations can be applied to cases where different measures of software test coverage and operational profile are used.

Item Type: Article
Additional Information: © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Statistical testing; Confidence bounds; Operational profile; Software reliability
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: School of Informatics > Centre for Software Reliability
URI: http://openaccess.city.ac.uk/id/eprint/15248

Available Versions of this Item

  • Deriving a frequentist conservative confidence bound for probability of failure per demand for systems with different operational and test profiles. (deposited 30 Aug 2016 12:32) [Currently Displayed]

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics