Organization: the organization characterizes the whole of the means which allow a company to continue its activities. Organization refers to the action of organizing, but it is also the result of an action: for example, a company, an association, are organized sets, "organizations" in the broad sense that are the result of the action of organizing. organization chart: the organization chart is a graphic representation that describes the organization of a company. It specifies the specialization of the services of an organization and the relations between the services, by giving little information on the distribution and the definition of the tasks. structure: the structure defines the internal architecture of an organization and the relations between its various elements. It is the whole of the devices according to which a company distributes, coordinates, controls its activities and directs or tries to direct the behavior of its members. strategy: the strategy is a whole of coordinated actions, of skilful operations, of maneuvers in order to reach a precise goal.