Our metrics individuals
contain all the necessary information for measurement partners to generate the
measurement handlers, to integrate the measurement information, and to validate
the service??™s conformance to the agreement.
The main purpose to utilize the ontology is to achieve better interoperability, automation,
and extensibility. Since different Web services probably have quite different
requirements, service partners often need to extend the metric sets to allow this flexibility.
However, when new metrics are defined, how to share the metrics definition
knowledge and how to integrate the different partner??™s knowledge becomes a critical
problem. Our work provides an ontology design pattern for Web services to describe
their QoS constraints and measurement information. The major concern of our work
Web Serv ces D scovery and QoS-Aware Extens on 0
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is the integration problem. This is also one of the major targets of Web services
when integrating heterogeneous systems.
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