consists of messages that follow prescribed channels of communication throughout the organization.Horizontal communication is important to organizational success when used to coordinate tasks, solve problems, share information, and resolve conflict.Ideally, downward communication should include such things as job instructions, job rationale, policy and procedures, performance feedback, and motivational appeals.Organizational charts demonstrate that communication can flow in several directions: downward, upward, and horizontally. 1) Downward communication occurs whenever superiors initiate messages to subordinates.