WS-direct: Web service-discoverability, recoverability, classifiability and trustworthiness

Abstract

Despite the growing use of Web Services by many organizations, there are several issues that are slowing their deployment. First, different providers may offer the same service with similar functionalities, so the service discovery is becoming complicated. Second, the context of Web Service is dynamic and several kinds of changes and faults may arise after deploying them. An easy solution to this issue is to reselect the service every time changes and faults occur. However, it is not feasible due to the high complexity of the reselection, which may lead to an extra delay and influence the performance of the services. Third, considering the untrusted communication environment in which Web Services operate, there is a trustworthiness issue. In order to deal with these issues, in this paper, we propose the WS-DIRECT framework. In this framework, first, discoverability is provided through a Functional-Level Mediation which is semantic discovery mechanism. Second, recoverability is handled through self-healing cycle which has three phases such as monitoring, diagnosis and repair. In addition, classifiability is provided by Decision Tree based Web Service classification mechanism which is able to predict the performance and minimizes number of reselections. Fourth, trustworthiness is maintained through ontology-based security mechanism. We will provide an implementation of proposed framework and efficiency measurements through performance evaluation. © 2013 Springer Science+Business Media.