QoS-Enhanced Broker for Composite Web Service Selection

Author

Chakhar, S.

Author_Institution

ESAD, Univ. Laval Pavillon Felix Antoine Savard, Quebec City, QC, Canada

fYear

2012

fDate

25-29 Nov. 2012

Firstpage

533

Lastpage

540

Abstract

The paper proposes a layered system for web service composition. The input for the system is the specification of the desired service, including both functional and non-functional requirements. The composition operation takes as input a generic composition graph defined based on the functional requirements. Then, the set of potential compositions is identified based on "hard" non-functional requirements. This set is represented in terms of an extended version of the composition graph that permits to take into account the different BPEL constructors. Finally, best composition(s) are identified by solving a biobjective shortest path problem on the transformed composition graph.

Keywords

Web services; formal specification; graph theory; quality of service; BPEL constructors; QoS-enhanced broker; Web service selection composition; biobjective shortest path problem; functional requirements; generic composition graph; nonfunctional requirements; quality-of-service; service specification; Availability; Ontologies; Planning; Quality of service; Shortest path problem; Silicon; Web services; quality of service; service composition; service selection; web service;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Image Technology and Internet Based Systems (SITIS), 2012 Eighth International Conference on

Conference_Location

Naples

Print_ISBN

978-1-4673-5152-2

Type

conf

DOI

10.1109/SITIS.2012.83

Filename

6395140