The document outlines the topics covered in 4 units related to production planning and control, forecasting techniques, facility layout and material requirements planning. Unit 1 discusses functions of production planning, productivity, goods design, aggregate planning strategies and methods. Unit 2 covers forecasting techniques, errors, and qualitative methods. Unit 3 includes plant location factors, layout types, and assembly line balancing models. Unit 4 focuses on lean management, just-in-time, total quality management, six sigma, MRP systems, and enterprise resource planning.