Supervision involves overseeing the work of subordinates in an authoritative manner based on their hierarchical organization. It aims to assist in developing staff to their highest potential while delivering high quality services. The supervisor functions include administrative duties, teaching, helping, linking staff, and evaluating performance. Good supervision is well-planned and helps individuals set objectives and continuously improve their work through analysis. Key qualities of an effective supervisor include thoroughness, fairness, initiative, tact, enthusiasm, and emotional control.