Communication functions
11.1. Equation «Needs/Goals/Functions»
A. Functions are the activities for which an entity is destined or in which is used. Functions are entity responsibilities or missions. Communication functions are constituted by assumed missions by this to reach some goals. In fact, communication functions are communication system functions. A system has a set of fundamental functions and one or more complementary functions. By definition, a system is constituted by interrelation elements that roll on procedural, unitary and coherent, as entity less one function. Functions are not autotelic systemic elements. They are exerted by systemic entities. Functions are functions in the accomplishment by an entity of some goals. It is understood that functions are determined by goals that animates the system.