Calder, M. and Sevegnani, M. (2019) Stochastic model checking for predicting component failures and service availability. IEEE Transactions on Dependable and Secure Computing, 16(1), pp. 174-187. (doi: 10.1109/TDSC.2017.2650901)
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133560.pdf - Accepted Version 8MB |
Abstract
When a component fails in a critical communications service, how urgent is a repair? If we repair within 1 hour, 2 hours, or n hours, how does this affect the likelihood of service failure? Can a formal model support assessing the impact, prioritisation, and scheduling of repairs in the event of component failures, and forecasting of maintenance costs? These are some of the questions posed to us by a large organisation and here we report on our experience of developing a stochastic framework based on a discrete space model and temporal logic to answer them. We define and explore both standard steady-state and transient temporal logic properties concerning the likelihood of service failure within certain time bounds, forecasting maintenance costs, and we introduce a new concept of envelopes of behaviour that quantify the effect of the status of lower level components on service availability. The resulting model is highly parameterised and user interaction for experimentation is supported by a lightweight, web-based interface.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Calder, Professor Muffy and Sevegnani, Dr Michele |
| Authors: | Calder, M., and Sevegnani, M. |
| College/School: | College of Science and Engineering College of Science and Engineering > School of Computing Science |
| Journal Name: | IEEE Transactions on Dependable and Secure Computing |
| Publisher: | Institute of Electrical and Electronics Engineers |
| ISSN: | 1545-5971 |
| ISSN (Online): | 1941-0018 |
| Published Online: | 10 January 2017 |
| Copyright Holders: | Copyright © 2017 IEEE |
| First Published: | First published in IEEE Transactions on Dependable and Secure Computing 16(1):174-187 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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