Capturing Baseline Data
As a first step to using the RTF, testers provide an input message file. This input message file is then run through CMSTPF, and the RTF captures the baseline data that is produced

Among the types of baseline data captured are

• Tape reads and writes;
• Message inputs and outputs;
• Database reads and writes;
• Trace data (macro and instruction);
• Program Errors;
• General Data Sets reads and writes.

Capturing Second-Run Data
After the baseline data is captured, an EXEC is called that allows testers to change the TPF environment (by making planned changes to programs, the database, etc.). Then the input file is run through CMSTPF again, and second-run data is captured.

Comparison
The final step the RTF takes is comparing the second-run data to the baseline data in order to measure the impact of the planned changes on the TPF environment (see Comparisons).