| Publisher | University College London | ||
|---|---|---|---|
| Format | 620.2KB PDF | Date added | 03 Feb 2007 |
| Topics | Monitoring Systems, Web Services, SLA | ||
| Downloads | 13 | ||
Web services are increasingly used in inter-organizational settings. If an organization depends on the service quality provided by another organization it often enters into a bilateral Service Level Agreement (SLA) to precisely determine service quality and permitted service use. SLAs then also determine penalty payments as risk mitigation against poor service quality and overuse of the service. Once these agreements are entered into, it becomes necessary to monitor for both poor service quality and also abuse of the provision beyond the agreed limits. The paper addresses the question of how service level agreements can be monitored efficiently and automatically. The paper shows how timeliness constraints, such as latency, throughput, availability and reliability, in formal service level agreements can be translated into timed automata.
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