Making Components Contract Aware
Computer
The WSLA Framework: Specifying and Monitoring Service Level Agreements for Web Services
Journal of Network and Systems Management
Automated SLA Monitoring for Web Services
DSOM '02 Proceedings of the 13th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management: Management Technologies for E-Commerce and E-Business Applications
On Requirements for Ontologies in Management of Web Services
CAiSE '02/ WES '02 Revised Papers from the International Workshop on Web Services, E-Business, and the Semantic Web
SLAng: A Language for Defining Service Level Agreements
FTDCS '03 Proceedings of the The Ninth IEEE Workshop on Future Trends of Distributed Computing Systems
Management issues for distributed services
SDNE '95 Proceedings of the 2nd International Workshop on Services in Distributed and Networked Environments
Quality of services specification in distributed object systems design
COOTS'98 Proceedings of the 4th conference on USENIX Conference on Object-Oriented Technologies and Systems - Volume 4
Management applications of the web service offerings language (WSOL)
CAiSE'03 Proceedings of the 15th international conference on Advanced information systems engineering
Extending Apache Axis for monitoring of Web Service Offerings
BSN '05 Proceedings of the IEEE EEE05 international workshop on Business services networks
Conditions for access and use of legal document retrieval web services
Proceedings of the 11th international conference on Artificial intelligence and law
On extending WS-policy with specification of XML web service semantics
CEA'07 Proceedings of the 2007 annual Conference on International Conference on Computer Engineering and Applications
Analytical comparisons of switching of web services and switching of service offerings
International Journal of Web and Grid Services
Towards policy driven context aware differentiated services design and development
Enterprise Information Systems - Challenges and Solutions in Enterprise Computing - 11th International IEEE EDOC Conference (EDOC 2007)
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We discuss Web Service Management (WSM) and Web Service Composition Management (WSCM) applications of the Web Service Offerings Language (WSOL) and how the language supports these applications. WSOL is a language for the formal specification of classes of service, various constraints (functional constraints, Quality of Service QoS, and access rights), and management statements (prices, monetary penalties, and management responsibilities) for Web Services. Describing a Web Service in WSOL, in addition to the Web Services Description Language, enables monitoring, metering, accounting, and management of Web Services. Metering of QoS metrics and evaluation of constraints can be the responsibility of the provider Web Service, the consumer, and/or one or more mutually trusted third parties (SOAP intermediaries or probes). Further, manipulation (switching, deactivation, reactivation, deletion, or creation) of classes of service can be used for dynamic (run-time) adaptation and management of Web Service compositions. To demonstrate the usefulness of WSOL for WSM and WSCM, we have developed a corresponding management infrastructure, the Web Service Offerings Infrastructure (WSOI). WSOI enables monitoring of WSOL-enabled Web Services and dynamic manipulation of their classes of service.