The document discusses communication in management. It defines communication as the process of sharing information through symbols like words and messages. Communication can occur between different levels and departments in an organization. It notes that communication has information, motivation, and control functions. The communication process involves developing an idea, encoding it into a message, transmitting the message, receiving it, decoding it, accepting or rejecting it, using the information, and providing feedback. The document also discusses different types of communication like verbal, nonverbal, downward, upward, and horizontal communication. It outlines some common barriers to communication and methods used for upward communication in organizations. Finally, it provides a definition of a management information system and its purposes.