Late changes to the mandate may be requested by the Commissioner. If these adjustments are significant and occur after the contract or agreement is signed, the practitioner should refer the agent to the original visual concept and the agreement signed by both parties. An authorization form for prototyping can also be useful in this negotiation. The contract/agreement and prototyping authorization form becomes the common protocol for initial discussions and agreements. These documents remind the Commissioner that he or she contributed to the development of the exhibit and that additional costs will be required to require modifications at this stage. The contract/agreement may also include the number of changes/treatments that can be made before other fees are charged. The cornerstones of this agreement are three defined terms. In order to avoid the need to resolve disputes through legal channels, it is important to establish, within the framework of the treaty or agreement, a practical means of resolving a dispute. It recognizes that there may be differences of opinion or expectations and that there is an agreed solution. The clause should recommend the appointment of a mediator who could help resolve the dispute. Practitioners reserve the right to correctly attribute their work and treat it with respect. The work of art must be identified as the work of the practitioner.
The practitioner and the Commissioner should agree on the form and position of this identification. The payment plan is described in the contract or agreement, but must participate in the discussions from the first meeting. It is important to know where the costs are going into the commissioning process. Most practitioners do not have the means to cover the cost of materials and services for a prepayment fee. If a visual design fee is paid, this may be an injection of funds to allow the practitioner to start working. For other commissions, a deposit is required to retain the practitioner`s services and begin the process. Under these circumstances, moral rights apply and the role of all practitioners involved in the work should be publicly recognized, unless a contrary agreement is negotiated. A treaty manages different perceptions and understandings and negotiates and resolves difficult issues.