The demand for subassembly S is 100 units in week 7. Each unit of S requires one unit of T and 0.5 unit of U. Each unit of T requires one unit of V, two units of W, and one unit of X. Finally, each unit of U requires 0.5 units of Y nd three unit of Z. One from manufacturers all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y and 1 week to make Z.

1. Construct a product structure and a gross material requirements plan for the dependent inventory items. Identify all level, parents and components.

1. Construct a net material requirements plan (Item S & T only) for the product structure and the following on hand inventory.

Items	On hand inventory	Items	On hand inventory
S	20	W	30
T	20	X	25
U	10	Y	15
V	30	Z	10