Chen, Bihuan; Peng, Xin; Yu, Yijun and Zhao, Wenyun
(2011).
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| URL: | http://www.www2011india.com/ |
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| DOI (Digital Object Identifier) Link: | http://doi.org/10.1145/1963192.1963205 |
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Abstract
Running in a highly uncertain and changing environment, Web systems cannot always provide full set of services with optimal quality, especially when the workload is high or failures in sub-systems occur frequently. It is thus desirable to continuously maintain a high satisfaction level of the system value proposition, hereafter survivability assurance, while relaxing/sacrificing certain quality/functional requirements that are not crucial to the survival of the Web systems. In this paper, we propose a requirements-driven self-tuning method for survivability assurance of Web systems. Using a value-based feedback controller plus a requirements-oriented reasoner, our method makes both quality and functional requirements tradeoffs decisions at runtime.
| Item Type: | Conference Item | ||||||
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| Copyright Holders: | 2011 The Author/Owner(s) | ||||||
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| Keywords: | survivability; self-tuning; value; requirements; reasoning | ||||||
| Academic Unit/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications Faculty of Science, Technology, Engineering and Mathematics (STEM) |
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| Interdisciplinary Research Centre: | Centre for Research in Computing (CRC) | ||||||
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| Item ID: | 33839 | ||||||
| Depositing User: | Danielle Lilly | ||||||
| Date Deposited: | 20 Jun 2012 14:35 | ||||||
| Last Modified: | 09 Aug 2016 03:33 | ||||||
| URI: | http://oro.open.ac.uk/id/eprint/33839 | ||||||
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