Modeling the Aspects of Quality of Service in Web Services and ...

even greater when the environment in which these
services are deployed is closely administered. Other
scenarios in which the QoS can be of use is during
the contract negotiation phase between the two
parties, either in person or electronically.
10. Conclusion
In this paper, we have shown some proposed
extensions and their benefits to WS during the
service discovery phase. The concept of Quality
Attributes and Quality Weights were introduced to
enable the Service Consumers to make a more
deterministic and predictable decision when choosing
to bind to a service. These attributes can also ease
the unpredictability of fail-over situations and aid the
choosing of a backup service during recovery. We
recommend these changes to be implemented in
UDDI to enable a true end-to-end Quality of Service
capability for Web Services.
11. Future Work
More research needs to be done on the modeling
of the various stages of Web Services. Furthermore,
the application of Web Services in Software Agents
needs to be further studied.
12. Acknowledgement
The author would like to thank Ken Brooks for his
tireless feedback and for assistance with this research
project.
13. References
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