conversation (BC-CST-GW)

Gateway/CPIC (BC-CST-GW)

A data exchange between programs through the Gateway.

Prerequisite for such a data exchange is an existing session. A conversation is a temporary connection between two transaction programs. SNA defines two type of conversations:

• Basis conversation, in which the transaction program processes and interprets data using a format defined by LU6.2. Programs close to the system should use "basic conversation".
• Mapped conversation, in which the protovol LU6.2 formats the data. On the recipient side, LU6.2 converts the data back and passes the unformatted data to the transaction program. Application programs should use "mapped conversation".

The SAP CPI-C interfaces use mapped conversation.