The command line tools msgtransform and msgdiff are extremely useful for
testing large batches of data through your message definition files. This
is another reason why it's useful to log HL7 messages in the format required
by the HL7 Simulator. These tools make it easy to
set up nightly regression testing since they can easily be invoked from batch
files. For more information on these tools, see msgdiff and msgtransform.