When you run an XSLT service using Run > Run As > Run Service, Designer calls the service (just as an ordinary Integration Server client would) and receives its results. To run an XSLT service, you need to specify an XML file to use as input. The service executes once, from beginning to end (or until an error condition forces it to stop) on the Integration Server on which you have an open session. Integration Server validates the XSLT code in the style sheet at run time and displays an error message when it encounters invalid code. Results from the service are returned to Designer and displayed in the Results view.

For more information about debugging services, see Running Services.