In a presentation control, another presentation request of another content is accepted from another application while presenting a content of one application, which content is preferentially presented is arbitrated based on a rule definition including: an attribute of the content that defines either a cancellation for withdrawing the presentation request or an on-standby without withdrawing the presentation request; and a constraint equation that defines an exception rule for defining a setting of the content that has lost arbitration as either the on-standby or the cancellation; and one of the contents arbitrated is presented to a presentation area.