This document provides an overview of management science concepts from different perspectives throughout history. It begins with definitions of key terms like management, organization, and organizational performance. It then discusses the four main functions of management and how time is spent on them at different management levels. Several classical perspectives are explained, including scientific management, bureaucratic organizations, and Henri Fayol's administrative principles. The document also covers the humanistic perspective and Hawthorne Studies, as well as the human resources perspective. Contemporary approaches like systems theory and contingency view are introduced. The document concludes by introducing contemporary management practices like total quality management.