1) Definition: Lean thinking, lean operating systems, time bucket, inventory, and inventory systems, forecasting, 2) Topic: Forecasting and Demand Planning. Revise what will happen with poor forecasting. Revise the basic steps in forecasting. 3) Topic: Lean Operation Revise the categories of waste as stated by The Toyota Motor Company. 4) Topic: Inventory Management Revise the purpose of inventory, types of inventories, examples of perishable inventory. Also, please look into the issues that might happen in inventory management. 5) Topic: Scheduling and Sequencing Revise the definition of scheduling and sequencing. Revise the examples of scheduling and sequencing. Revise the appointment system.