When choosing a communication channel, to the degree to which communications can be planned and recorded, thus allowing strategic message development.

Control

Explanation: Communication channel is the medium created for the process of the communication.These channel let the source to destination communication in a cycle so that message can be send and received respectively.

Control in the branch of communication channel is used for the handling of the communication limit of the message that is being sent and received .It puts a limitation to the extent message can be read, recorded ,movement of resource and other facilities.

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).