The CICS® catalog example application is a working COBOL application that is designed to illustrate best practice when connecting CICS applications to external clients and servers.
The base application has a 3270 user interface, but the modular structure, with well-defined interfaces between the components, makes it possible to add further components. In particular, the application comes with Web service support, which is designed to illustrate how you can extend an existing application into the Web services environment.