A precise definition of QoS for web services and its application in the invocation of applications from a workflow

Issue title: Special Supplement Issue in Section A and B: Selected Papers from the ISCA International Conference on Software Engineering and Data Engineering, 2010

Guest editors: Narayan C. Debnath

Article type: Research Article

Authors: Debnath, Narayan^a | Martellotto, Paola^b | Daniele, Marcela^b | Riesco, Daniel^{c; *} | Montejano, German^c

Affiliations: [a] Department of Computer Science, Winona State University, Winona, MN, USA | [b] Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas, Fco-Qcas y Naturales, Dpto. de Computación, Río Cuarto, Argentina | [c] Universidad Nacional de San Luis, Facultad de Ciencias Físico Matemáticas y Naturales, Departamento de Informática, San Luis, Argentina | Department of Computer Science, Winona State University, Winona, MN, USA

Correspondence: [*] Corresponding author. Tel.: +54 2652 424027 int. 251; Fax: +54 2652 430059; E-mail: [email protected].

Abstract: The Workflow Reference Model standardizes workflow application development, in order to achieve the interoperability of different workflows. The web services technology allows optimizing the invocation of applications from the workflow engine, so that the workflow engine does not need to know the location of the application to invoke, and that any application can be relocated without involving a change in its invocation. But UDDI, the protocol used to register and locate web services, has some problems in establishing the correspondence between requester requirements and the specifying of services that have the same semantic behavior, even with different syntactic description. Furthermore, in the selection of a web service their quality attributes (QoS) are not considered. This proposal applies to the case study OpenUP/Basic, focusing on the quality attributes of web services for optimal selection and invocation.

Keywords: Workflow, web services, quality attributes, graph transformation

DOI: 10.3233/JCM-2011-0380

Journal: Journal of Computational Methods in Sciences and Engineering, vol. 11, no. s1, pp. S89-S102, 2011