A reliability assessment method for software products in operational phase- Proposal of an accelerated life testing model

Citation
H. Okamura et al., A reliability assessment method for software products in operational phase- Proposal of an accelerated life testing model, ELEC C JP 3, 84(8), 2001, pp. 25-33
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE
ISSN journal
1042-0967 → ACNP
Volume
84
Issue
8
Year of publication
2001
Pages
25 - 33
Database
ISI
SICI code
1042-0967(2001)84:8<25:ARAMFS>2.0.ZU;2-Y
Abstract
To assess the reliability of software products, the differences between the testing phase and the operational phase must be clearly distinguished. In contrast to the former that makes assessments based only on the statistical properties of the fault detection mechanism observed in the testing proces s, the latter must be executed by predicting the differences between the en vironment in the testing phase (effort, test method, and so on) and the sof tware operational environment such as the frequency of use. Previously, man y reliability assessment methods for software products in the operational p hase have been proposed. However, none have adequately modeled the software operational environments without conflicts. The general methodologies in t his field have still not been established. In this paper, we propose a dyna mic model to represent the phenomenon of software reliability growth in the operational phase by applying the concept of accelerated life testing of h ardware. In addition, we investigate the effectiveness of our model by usin g both the fault detection time data obtained in the actual software testin g process and the error occurrence time data observed in the operational ph ase. (C) 2001 Scripta Technica