The assistant
framework is designed for the language specification to assist the service selection
and publish. High-level, QoS requirements may be mapped to the actual QoS-enabled
transport layer through its proxy. It uses ontology style to define custom metrics.
Two levels of metrics, the service performance level metrics and the transport level
metrics, are defined in their system. Their approach provides an efficient and QoSaware
service selection to enhance the original UDDI.
As reported in the last few examples, these QoS specifications are not based on
ontology level. This creates obstacles to share domain knowledge and increases the
cost of the integration. In the next section, we present our work on the QoS-aware
service discovery based on the ontology level. The major purpose of this work is
to simplify the integration problem and assist the QoS-aware service discovery and
measurement.
Web Serv ces D scovery and QoS-Aware Extens on
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
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