Cost Dependent QoS-based Discovery of Web Services

Abstract

The role of the web services for development of distributed applications steadily increases over time. However, the rising number of available web services with the same functionality embarrasses clients during selection of such a one that fits best their requirements. To solve this problem, web service selection process needs to concern not only functional but also nonfunctional (QoS) properties of web services. The clients need to know the quality of the offered web services as well as what will be the price that they should pay for that quality. This paper contributes to this challenge by presenting an algorithm that allows clients to select the web service with an optimal correlation between quality and price.