| Publisher | Budapest University of Technology and Economics | ||
|---|---|---|---|
| Format | 231.6KB PDF | Date added | 23 May 2006 |
| Topics | Quality of Service, Service-Oriented Architecture | ||
| Downloads | 28 | ||
Due to the increasing need of highly dependable services in Service-Oriented Architectures (SOA), service-level agreements include more and more frequently such traditional aspects as security, safety, availability, reliability, etc. Whenever a service can no longer be provided with the required QoS, the service requester needs to switch dynamically to a new service having adequate service parameters. In the current paper, the authors propose a metamodel to capture such parameters required for reliable messaging in services in a semi-formal way. Furthermore, the authors incorporate fault-tolerant algorithms into appropriate reconfiguration mechanisms for modeling reliable message delivery by graph transformation rules.
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