Expert Determination can only be undertaken with the agreement of both parties. In order to facilitate such agreement, parties may use the available Agreement and Request for WIPO Expert Determination in IPOS Patent Proceedings so that their dispute is dealt with through WIPO Expert Determination. In the Agreement and Request, parties can adapt the process to their needs by agreeing for example on the scope of the dispute, the time set aside for the expert determination, and the language to be used (such matters can also be agreed after the appointment of the expert).