The convention of arbitration irrital is a contract which determines the birth in head at parts contractors of one complex situation, of character instrumental, aimed to protection of rights, me by it the which, therefore, not si solves no conflict, preparing, if anything, the way to resolve it. in particular, the arbitration free a a mandate, without needs representation, with wounded jointly from a plurality parts (at least two) ad one or more referees. the construction of the institute in substantial terms, instead of procedural, determines which, in the arbitrator irritation, the AR Bitro is invested of the task of stipulating, on assignment of the parts, a contract through which to resolve the controversy, similarly a what the parts would be legitimate directly a do.