This architecture supports two-way client-server interactions. The Proxy Framework acts as a service broker between the clients and the CSTA Web services. It dynamically selects the Web service based on client profile, Web service registry and runtime service status. The Proxy framework separates service independent functions, such as session management, event subscriptions, and type conversion, from the service dependent logic, such as message composition and parsing, so that different services can be plugged into the framework easily. The Proxy Framework can be dynamically configured into a Client Proxy to facilitate development of CSTA applications in programming languages, including Visual C++, Visual Basic and Java. Due to the duplex web services interaction created, load will be reduced at the server end, at the same time push back service which is a part of the two-way interaction of the web service will pass the message to other client in the network. Emphasis will be on increasing the data transfer speed, at the same time use of a web service in a chat server will make it work better and faster in distributed environment.

1. OASIS. (2007, April. ), "Web Services Business Activity(WSBusinessActivity) Version 1. 1," Available: http://docs. oasisopen. org/ws-tx/wstx-wsba-1. 1-spec-os. pdf [Aug. 23, 2013].
2. N. Srirajun, P. Bhattarakosol, P. Tantasanawong, and S. Han, "Trustable Web Services with Dynamic Confidence Time Interval," in Proc. of the 4th Int. Conf. on New Trends in Information Science and Service Science (NISS), 2010, pp. 11-13.
3. WSDL 2. 0: A Pragmatic Analysis and an Interoperation Framework, 2008 SYS-CONMedia,
4. W. Dong, "Multi-agent Test Environment for BPEL-based Web Service Composition", the IEEE Int. Conf. on Cybernetics and Intelligent Systems, 2008, pp. 855-860.
5. C. -H. Liu, S. -L. Chen, and X. -Y. Li, "A WS-BPEL Based Structural Testing Approach for Web Service Compositions," the IEEE International Symposium on Service-Oriented System Engineering, 2008, pp. 135-141.
6. "A Framework for Nested Web Services", International Journal of Engineering Research & Technology, Volume/Issue: Vol. 3 - Issue 3 (March - 2014) e-ISSN: 2278-0181
7. N. Srirajun, P. Bhattarakosol, P. Tantasanawong, and S. Han, "A Trustable Software with A Dynamic Loop Control Mechanism," in Proc. of the 5th Int. Conf. on Future Information Technology, 2010, pp. 20-24.
8. W3C. (2007, June), "Web Services Description Language (WSDL) Version 2. 0 Part 1: Core Language," Available: http://www. w3. org/TR/wsdl20/ [Aug. 10, 2013].
9. N. Parimala, and A. Saini, "Web Service with Criteria: Extending WSDL," in Proc. of the 6th Int. Conf. on Digital Information Management, 2011, pp. 205-210.
10. Real Time Messaging Server Using Duplex Web Services International Journal of Advanced Computer Research (ISSN (print): 2249-7277 ISSN (online): 2277-7970) Volume-4 Number-3 Issue-16 September-2014

Web service Messaging