Empty actions

Rules in which no single action cell is filled are not permitted with LF‑ET either.

If such rules exist, they are displayed on the screen du­ring compressing and the user can choose whether these rules should be compressed to one rule or not, or whether compression should be aborted completely.

We do not consider deleting such rules as a loss of information, because mis­sing rules can easily be automatically added again to the decision table at the push of a button.