This document provides an overview of supply chain management (SCM). It defines SCM and key related terms. It discusses the historical evolution of SCM from early automotive supply chains to more integrated modern models. It also describes important SCM concepts like integration, relationships, decisions, and processes. Effective SCM requires internal and external integration across the supply chain network as well as coordinated planning, sourcing, production, and delivery. Public sector procurement differs from private sector SCM in its focus on transparency, fairness, and cost control.