Design of Quality-Based Composite Web Services

One of the key factors for successful SOC-based systems is the ability to assure the achievement of Quality of Services. The knowledge and the enforcement of the Quality of Services allows for the definition of agreements that are the basis for any business process. In this paper we discuss a method for the evaluation of qualities associated with services. This method is based on a set of quality evaluation rules that state the relations between Web services quality dimensions and process structure. The method is part of a design methodology that addresses quality issues along the service life-cycle. A case study in the e-placement field is presented to illustrate a practical use of the approach.

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