Coordination is the harmonization of activities and parts to facilitate organizational functioning and success. It involves proper order and relationships between interdependent elements. Coordination requires ongoing processes like communication and leadership to resolve conflicts. Key principles of coordination include direct contact, early planning, reciprocity between interdependent parts, and continuity. Coordination relies on sound planning, simplified organization structures, committees to address inter-unit issues, open communication, and effective leadership and supervision through a clear chain of command. Lack of these elements can create barriers to coordination.