SAP Graphics Programs and Function Modules The following table lists the SAP Graphics programs, their graphing capabilities and the available function modules for calling each of these programs. The table also contains the utility function modules. The graphics function modules call the relevant graphics program directly (for example GRAPH_MATRIX_4D). The other function modules perform utility functions and do not call a specific graphics program (GRAPH_ACTION, GRAPH_RECEIVE, and the GET_xxxx_PARAM modules). The distinction is important because the utility function modules interact closely with the functions modules that call a graphics program.