CICS® on System/390® requires VTAM/NCP definitions for all links to CICS Transaction Server for Windows, CICS/400, or CICS on Open Systems, except DFT 3270 links. This chapter gives examples of a VTAM® application definition, and of NCP and MODETABLE definitions for both single sessions and parallel sessions. To understand the details of the examples, see the VTAM Resource Definition Reference manual, SC33-6412.