If the AS ABAP is used as a Web client, the running ABAP program creates HTTP requests, sends them to a Web server, and waits for the response from the Web server.

The graphic below illustrates the process.

The work process writes the data to be processed into a memory pipe (MPI) and sends the request to the ICM via a network connection, using TCP/IP. The ICM then processes the data it receives from the MPI and writes a response back into the MPI. The ICF process is described in detail in the interaction model section.