1. A method for Web service information management in a service-oriented architecture application, comprising: intercepting a service request message issued to a Web service provider by a Web service requester for a Web service in response to executing said service-oriented architecture application on a Web service requester side; adding a tracing header in the service request message for requesting detailed runtime information of the Web service and sending the service request message to a Web service provider side; intercepting the service request message coming from the Web service requester on the Web service provider side; tracing detailed runtime information based on the tracing header during the execution of the Web service in response to the service request message; and adding an acknowledgement tracing header containing detailed runtime information, produced by said tracing, into a response message to be returned to the Web service requester by the Web service provider and returning the response message to the Web service requester.