This document discusses decision making and the various processes involved. It defines decision making as selecting a course of action from available alternatives. Rational decision making aims to make consistent, value-maximizing choices within constraints through logical multi-step analysis. However, human rationality is limited by our mental capacity. Developing alternatives involves identifying options and comparing them to limiting factors. Alternatives are then evaluated both quantitatively and qualitatively before selecting the optimal choice based on factors like cost-effectiveness. The document also discusses different types of decisions under certainty, uncertainty and risk.