This document discusses managerial decision making. It begins by defining decision as a choice between alternatives and decision making as the process of identifying problems and opportunities to resolve them. It then discusses various characteristics, types, and importance of decision making. The document outlines different decision making models including classical, administrative, and political models. It also discusses decision analysis tools like influence diagrams and decision trees. Finally, it discusses different decision styles like directive, analytical, conceptual, and behavioral. Overall, the document provides an overview of key concepts and approaches related to managerial decision making.