This document provides an overview of Module I of an Organizational Behaviour course. It defines key concepts like organizational behavior, management functions, and the systems approach. It also outlines emerging challenges for OB like globalization, diversity, and quality management. OB draws from multiple disciplines including psychology, sociology, and political science. The systems approach views organizations as importing resources, transforming inputs, and exporting outputs with feedback. Understanding OB helps managers achieve goals through people and respond to a changing environment.