Towards a rich and updated web services database

Web Services Composition (WSC) is one of the main benefits of Service Oriented Architecture (SOA), however, its optimization is still a highly discussed research topic. In order to have an optimal composition, and therefore the best composite service, the composition mechanism must meet the requirements and issues of this process. Among the most important needs, we focus on the quality of web services involved, since the functional properties are not sufficient to determine the most appropriate service to meet the business goal. Researchers in this area propose different approaches and architectures to integrate Quality Of Service (QoS) values as a selection criterion, but they don't mention how to automatically generate those information and they don't consider the QoS values variations. They evaluate the QoS once and use calculated values in a static way. In our research work, we propose to automate the web service database filling. So, we don't have to manually read the WSDL file and extract necessary information for each operation. Moreover, we propose a QoS monitor component to calculate and update stored QoS values.