Material Planning Questions 1. What is the main objective of material planning? What are the basic questions addressed by material planning? 2. Define and explain the relevance to material planning of the following data in the material master: a. Procure type b. MRP type c. Lot size key d. Scheduling times e. Planning time fence f. BOM selection method g. Availability check group h. Strategy group i. Consumption mode 3. Explain the differences between a. Dependent requirements and independent requirements b. Planned independent requirements (PIRs) and customer requirements (CIRs). 4. What are product groups? What is the role of products in material planning?