Architecture-based runtime software evolution
Proceedings of the 20th international conference on Software engineering
The WSLA Framework: Specifying and Monitoring Service Level Agreements for Web Services
Journal of Network and Systems Management
HICSS '05 Proceedings of the Proceedings of the 38th Annual Hawaii International Conference on System Sciences - Volume 07
A Broker-Based Framework for QoS-Aware Web Service Composition
EEE '05 Proceedings of the 2005 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE'05) on e-Technology, e-Commerce and e-Service
Service offerings for xml web services and their management applications
Service offerings for xml web services and their management applications
Management applications of the web service offerings language (WSOL)
Information Systems - Special issue: The 15th international conference on advanced information systems engineering (CAiSE 2003)
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Dynamic (run-time) adaptation of web service compositions (choreographies and orchestrations) is needed to accommodate various changes and disturbances like poor performance of composed web services. We explain in detail a novel analytical methodology for comparing various approaches to dynamic adaptation of web service compositions. This methodology is based on comparing the number of exchanged SOAP messages. Furthermore, we present formulae generated by this methodology for switching of web services and switching of service offerings (classes of service). These formulae quantify the extent to which switching of service offerings is faster and simpler. The presented results complement previous publications that discussed the corresponding experimental comparisons of dynamic adaptation approaches.