NDLI: Optimizing composite Web services through parallelization of service invocations

Content Provider	IEEE Xplore Digital Library
Author	Sato, N. Saito, S. Mitsui, K.
Copyright Year	2002
Abstract	Current standardization efforts on Web service interoperability provide ways to compose Web services distributed across heterogeneous network environments. Unfortunately, this has been attained at the expense of efficiency, that is, substantial SOAP communication overheads have negative impact on the performance of Web services. To resolve this and improve performance, we have developed a new mechanism for hiding communication latency by means of parallelization of service invocations within a composite Web service. Our mechanism exploits static analysis techniques to keep track of the behavioral states of Web service components through their execution steps and statically detects whether service invocations may have dependencies with each other at certain states. The analysis can thus guarantee the parallelization will not affect the result Of computation. Evaluation shows strong potential of our mechanism: it substantially improves the performance of composite Web services based on a real-world example of Portfolio optimization.
Sponsorship	IEEE Comput. Soc. - Tech. Committee on Distrib. Process. Ecole Polytechnique Federale de Lausanne - Laboratory of Systemic Modeling
Starting Page	305
Ending Page	316
File Size	399191
Page Count	12
File Format	PDF
ISBN	0769517420
DOI	10.1109/EDOC.2002.1137719
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-20
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Web services Simple object access protocol Concurrent computing Transport protocols Distributed computing Delay Portfolios Standardization Web and internet services Computational complexity
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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