Web service with criteria: Extending WSDL

Abstract

WSDL is used to describe the interface of a service, in XML format. The interface describes the functional properties as well as non functional properties. We are concerned with specifying ‘criteria’ as a non functional property of a web service. For this we have extend WSDL to X-WSDL. In order to add criteria information we extend the WSDL (Web Service Definition Language) schema by adding a new element ‘criteriaservice’ this is available in the new namespace. Using this ‘criteriaservcie’ element it is possible to specify the criteria along with a service in an X-WSDL document. The WSDL document is also extended by adding new attributes ‘criteria name’ and ‘description’ to service element. Using this extension it is possible to specify the criteria along with the service in X-WSDL document. The criteria are specified by the user when invoking a service. As a result, we are providing support to discover a more appropriate service according to his/her requirement.