There are different ways that you can use your COBOL development system to expose a COBOL application as a Web service.
Web Services Support
Describes Web services technologies and how Enterprise Developer and Enterprise Server support COBOL applications as Web services.
COBOL Web Services
There are several ways you can use your COBOL development system to expose COBOL programs as Web services.
WS-I Compliance
The Web services that the Service Interfaces feature creates are WS-I Basic Profile 1.0 compliant.