]> The role of an address required to address some agent in order to transfer information. An address, i.e. a specifier for a communication endpoint, usually determined by the communication channel, e.g. a physical location or direction in the case of face-to-face communication, an email address for email communication, a jabber ID for communication over the XMPP. The role of the addressee as defined by Jakobson's communication model. The role of the addresser as defined by Jakobson's communication model. The description of communication defining communication-roles based on the model of communication from Jakobson. The message role in the sense of Jakobson's communication model. The role of a contact as defined by Jakobson's communication model. For computer mediated communication this denotes the different channels comprising of the communication protocol.