Decision making is an integral part of a manager's job and responsibilities. It involves examining options and possibilities, comparing them, and choosing a course of action. Effective decision making requires managers to construct a clear understanding of the decision needed, compile requirements, collect information on alternatives, compare alternatives, consider potential issues, and commit to and implement a decision. There are various types of decisions managers must make, including organizational vs personal, basic vs routine, programmed vs non-programmed, individual vs group, and strategic vs tactical decisions. Barriers to good decision making include decisions that are hasty, narrow, scattered, fuzzy, rely too heavily on heuristics or hindsight bias, involve overconfidence, or make illusory correlations