The offline tester can output the arguments and return information of OpenTP1 functions as trace information. This is called collecting offline tester trace information. The trace information can be output to standard output or to a file specified in the offline tester environment definition. Regardless of the output file, the output trace information is the same and has the same format.

Using an offline tester command, the user can also output information from a trace file for a selected service.

Do not use a shared trace file. The contents of the trace file are overwritten when a number of offline testers share the same file.

Figure 10-9 illustrates collection of offline tester trace information.

Figure 10-9 Collecting offline tester trace information