If it is not defined, they need to design this
new metric concept and share this knowledge by publishing the definition to the
knowledge base. The corresponding measurement handlers should be chosen or
implemented by the measurement partner. Since all the metrics concept definition
is shared, the service provider and service requester can reuse this knowledge base
for the publishing and discovery of Web services.
Other.QoS-Related.Service.Description.Projects
There are many research works that target the description, advertising, and signing
up of Web services at defined QoS levels. These are normally application layer
specifications which are hardware and platform independent. They include aspectoriented
approach such as quality of service for objects (QuO) framework (Zinky,
Bakken, & Schantz, 1997) and its QoS description language (QDL); object-oriented
approach such as HP??™s QoS modeling language (QML) (Frolund & Koistinen,
1998); XML-based QoS languages such as HP??™s Web services management language
(WSML) and its framework (Sahai et al., 2002); IBM??™s Web service level
agreement (WSLA) language (Ludwig, Keller, Dan, King, & Franck, 2003) and its
supporting framework (Dan et al.
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