14.5 The demand for subassemblv S is 100 units in week 7.

Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and I unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make

see attached for photo for questions 14.8

CHAPTER 14 MATERIAL REQUIREMENTS PLANNING (MRP) AND ERP 595 L weeks to make U, 2 weeks to make V, 3 weeks to make W, I week to make X, 2 weeks to make Y, and 1 week to make Z. 2) Construct a product structure. Identify all levels, parents, and components. () Prepare a time-phased product structure. .14.6 Using the information in Problem 14.5, construct a gross material requirements plan. PAr2 . 14.7 Using the information in Problem 14.5 , construct a net material requirements plan using the following on-hand inventory. PX "14.8 Refer again to Problems 14.5 and 14.6. In addition to 100 units of S, there is also a demand for 20 units of U, which is lemponent of S. The 20 units of U are needed for maintenance prposes. These units are needed in week 6 . Modify the gross tuterial requirements plan to reflect this change. PX