Quality Atributes Driven Web Services Design Method

When developing e-services, it is important to select an e-service system architecture that ensures that the e-service complies with all the quality criteria set for it in order to facilitate broader application of the e-service. This means that it is necessary to use effective design methods to create e-service systems that ensure the creation of an acceptable e-services system architecture. Existing design methods address the quality aspects, but they have a drawback - system architect's subjective opinion that not always might lead to the best solution. Instead, an e-services system design method that is based on formal use of optimization methods can be employed. Initially the e-service algorithm graph is created, and by recurSively segmenting its vertices in all possible ways the web service graphs are obtained. The segmentation of the algorithm graph means that all the possible solutions that can affect the quality of the e-service system architecture are dealt with. Using multi-criteria optimisation, a Pareto optimality set is obtained from all the web service graphs and the web service graphs of the obtained set can serve as the basis for selecting an acceptable e-service system architecture