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Optimal QoS-Aware Web Service Composition Marco Aiello, Elie el Khoury, Alexander Lazovik, and Patrick Ratelband
 

Summary: Optimal QoS-Aware Web Service Composition
Marco Aiello, Elie el Khoury, Alexander Lazovik, and Patrick Ratelband
Distributed Systems Group
Mathematics and Computing Science Department
University of Groningen, The Netherlands
Emails: m.aiello@rug.nl, e.el.khoury@rug.nl, a.lazovik@rug.nl, ratelband@gmail.com
Abstract
The availability of many independent services on an
open network opens the opportunity of composing individual
instances to achieve complex functionality. Most often there
are several possible compositions to achieve the same high-
level functionality; the advantage of choosing one composi-
tion instead of another one may lie in the different quality of
the composition, e.g., one might be cheaper, faster, or more
reliable. In this paper, we focus on services described with
XML documents and accessed via XML Protocols, known
as Web services, and enriched with semantic and Quality
of Service (QoS) annotations. We propose an algorithm
that, given a desired functionality, returns a composition of
services from a repository with the optimal response time or

  

Source: Aiello, Marco - Institute for Mathematics and Computing Science, Rijksuniversiteit Groningen

 

Collections: Computer Technologies and Information Sciences