Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/62960
Title: A study of operational and testing reliability in software reliability analysis
Authors: Yang, B. 
Xie, M. 
Keywords: Nonhomogeneous Poisson process
Operational reliability
Software release time
Software reliability
Testing reliability
Issue Date: 2000
Source: Yang, B.,Xie, M. (2000). A study of operational and testing reliability in software reliability analysis. Reliability Engineering and System Safety 70 (3) : 323-329. ScholarBank@NUS Repository.
Abstract: Software reliability is an important aspect of any complex equipment today. Software reliability is usually estimated based on reliability models such as nonhomogeneous Poisson process (NHPP) models. Software systems are improving in testing phase, while it normally does not change in operational phase. Depending on whether the reliability is to be predicted for testing phase or operation phase, different measure should be used. In this paper, two different reliability concepts, namely, the operational reliability and the testing reliability, are clarified and studied in detail. These concepts have been mixed up or even misused in some existing literature. Using different reliability concept will lead to different reliability values obtained and it will further lead to different reliability-based decisions made. The difference of the estimated reliabilities is studied and the effect on the optimal release time is investigated. © 2000 Elsevier Science Ltd. All rights reserved.
Source Title: Reliability Engineering and System Safety
URI: http://scholarbank.nus.edu.sg/handle/10635/62960
ISSN: 09518320
Appears in Collections:Staff Publications

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