By Topic

Assessing the reliability impacts of software fault-tolerance mechanisms

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Mendiratta, V.B. ; Bell labs., Lucent Technol., Naperville, IL, USA

Telecommunications systems are characterized by highly stringent reliability requirements for system availability and defect rate. A combination of approaches is used to achieve high software reliability, namely, fault avoidance, fault removal and implementation of fault-tolerant mechanisms. This paper focuses on the implementation of software fault-tolerant mechanisms and analyzes the impact of these mechanisms on software reliability. Based on field data on the frequency of invocation of some fault-tolerant mechanisms, we present an escalating recovery model for predicting the impact of these mechanisms on lost calls. The key parameters of the model are: the software fault recovery coverage factor; the proportion of successful recoveries at each level and the calls lost at each recovery level. The output of the model is a distribution and average of the number of lost calls per software error. The applicability of this model to systems with high reliability has been validated; the applicability of the model to less reliable systems is an area for future work

Published in:

Software Reliability Engineering, 1996. Proceedings., Seventh International Symposium on

Date of Conference:

30 Oct-2 Nov 1996