3.9 Authorities and contractors will generally wish to avoid going through the courts to settle any disputes. Dispute resolution procedures are often more efficient and cost-effective. MOD and Modus have agreed a liaison procedure between representatives within their respective organisations to settle any disagreements. Only if this procedure does not work, will the dispute be referred to MOD's and Modus' senior executives. The arrangements do allow for escalation to mediation, adjudication and arbitration. If MOD disagrees with Modus' calculation on the value-for-money review, it may refer the matter to an independent auditor.