The exception of compromise referred to one clause of arbitration ritual pertaining to competence, in as much as of the referees rituals it must be recognized nature jurisdictional and substitute of the judge ordinary. Of against, the exception referred to a clause arbitration ttiene per merit, in how much the pronunciation referee has nature negotiating and the compromise si configure as pact of renunciation to the judicial action and to the jurisdiction of the status with consequent inapplicability of the rules dictates per the arbitration ritual, ivi including art 819-ter cod. proc. civ.