Fragment-based caching of XML/SOAP messages
by Anindya DATTA and LIANG Qianhui (Althea)

Speaker:
	Anindya DATTA Visiting Associate Professor of Information Systems School of Information Systems, Singapore Management University		LIANG Qianhui (Althea) Assistant Professor of Information Systems School of Information Systems, Singapore Management University
Date: Time: Venue:	14 June 2007 (Thursday) 10:00 - 11:30am SIS Meeting Room 4.4, Level 4 School of Information Systems		We look forward to seeing you at this research seminar.

Abstract

Web services, using SOAP based communication and XML based documents, are becoming increasingly important in service-oriented architectures within enterprise networks. Two significant costs of these schemes are the performance penalty and bytage burden imposed due to SOAP and XML overheads.

In this work, we propose a scheme for caching fragments of SOAP/XML response messages to address these costs. Fragments are cached in the XML routers of an XML overlay network within an enterprise network. Such caching moves content closer to users, as well as mitigating processing requirements on the provider, thus reducing bandwidth requirements on the network as well as improving service times. We describe the system architecture and caching algorithm details for our caching scheme, develop an analysis of the expected benefits of our scheme, and present the results of simulation experiments to show the validity and performance improvements provided by our caching scheme.

Biography

Anindya DATTA is a Visiting Associate Professor with School of Information Systems, SMU. He received his B. Tech degree from the Indian Institute of Technology, Kharagpur and both his graduate degrees (M.S. and Ph.D.) from the University of Maryland, College Park. His first position was as an Assistant Professor at the University of Arizona from where he moved as an Associate Professor to Georgia Tech. His teaching topics are Data Management related courses and Enterprise Integration. His interest in research and project topics are Data Management, Application Level Virtualization, Utility Computing, High Performance Systems and Optimization.

LIANG Qianhui (Althea) is an Assistant Professor with School of Information Systems, SMU. She received her Ph.D. in Computer Engineering from University of Florida, May 2004. Her teaching topics are IS Software Foundations, Object Oriented Analysis and Design, Software Engineering. Her interest in research and project topics are Internet Computing, Web Service Applications for Business Integration, Web Service Constraints, Web Service Semantics and Service Compostion.