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SIGSOFT
2008
ACM

Efficient online monitoring of web-service SLAs

8 years 11 months ago
Efficient online monitoring of web-service SLAs
If an organization depends on the service quality provided by another organization it often enters into a bilateral service level agreement (SLA), which mitigates outsourcing risks by associating penalty payments with poor service quality. Once these agreements are entered into, it becomes necessary to monitor their conditions, which will commonly relate to timeliness, reliability and request throughput, at runtime. We show how these conditions can be translated into timed automata. Acceptance of a timed word by a timed automaton can be decided in quadratic time and because the timed automata can operate while messages are exchanged at runtime there is effectively only a linear run-time overhead. We present an implementation to derive on-line monitors for web services automatically from SLAs using an Eclipse plugin. We evaluate the efficiency and scalability of this approach using a large-scale case study in a service-oriented computational grid. Categories and Subject Descriptors D.2...
Franco Raimondi, James Skene, Wolfgang Emmerich
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where SIGSOFT
Authors Franco Raimondi, James Skene, Wolfgang Emmerich
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