What is Mediation? Expand Mediation is an informal, voluntary process which involves an independent facilitator (the mediator). Mediation works best when parties to the dispute come to the meeting with a real desire to resolve the disagreement and a willingness to negotiate. Using mediation does not affect the parent /carer's or young person’s right of appeal to the SEND Tribunal. For more information about the SEND Tribunal, please visit their website here.