E-Strategies for Resource Management Systems: Planning and Implementation by Alkhalifa Eshaa

Author:Alkhalifa, Eshaa...
Language: eng
Format: epub
Published: 2014-05-21T23:11:39.311000+00:00

5. The Coordinator and the mobile user start negotiating the specific terms of service provisioning, relying on the policies of the selected Web service and the SLA requirements. Then, the Coordinator requests from the QoS Negotiator to determine the final profile of the user by negotiating the level of QoS to be delivered.

6. Proposals are returned to the mobile user, who can accept or reject offers – rejections typically trigger renegotiation.

CONCLUSION AND FUTURE WORK

In this chapter, we have presented a cooperative broker-based system for service provisioning to mobile users while they move from one location to another in their corporate and partners’ networks. Access to QoS-enabled Web services is obtained according to the users’ home policies. Policies are a key component of the system as they are used at different levels: authorization, QoS specification, QoS service monitoring, and service selection. The components of QoS brokers at the visited site and the home site are involved in determining the mobile user profile and in negotiating a final SLA. This final SLA details the terms of service at the visited site according to several policies: Web service policies, selection policies, and QoS policies.

A prototype of our proposed framework is under development. The implementation platform includes: NetBeans 6.8, the UDDIe registry with MySQL, and Apache Neethi, which provides a general framework for developers to use WS-Policy. As a future work, we intend to test the prototype using real-life services and policies, and extend our proposed architecture with security policies related to SOA using standards such as WS_Security and WS_Policy.

REFERENCES

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W3C. (2008). W3C mobileOK Checker [Beta]. Retrieved from http://validator.w3.org/mobile/

W3C Mobile Web Initiative. (2005). MWI device description working group. Retrieved from http://www.w3.org/2005/MWI/DDWG/

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Ganna, M., & Horlait, E. (2003). Policy-based service provisioning and users management using mobile agents . In Horlait, E., Magedanz, T., & Glitho, R. H. (Eds.), Lecture Notes in Computer Science (Vol. 2881, pp. 53–66). Berlin: Springer.

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