Question

The demand for subassembly S is 120 units in week 7. Each unit of S requires2 units of T and 1 unit of U. Each unit of T requires 1 unit of​ V,1unit of​ W, and1 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,1week 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 week to make Z. Click the icon to view the product structure and the​ time-phased product structure.

Click the icon to view the​ on-hand inventory.

Item	​On-Hand Inventory	Item	​On-Hand Inventory
S	20	W	25
T	20	X	30
U	30	Y	40
V	20	Z	210

Construct a net material requirements plan using​ on-hand inventory

​(enter your responses as wholenumbers​).

		Week							Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
S	Gross req							nothing	2
	On hand							nothing
	Net req							nothing
	Order receipt							nothing
	Order release					nothing

Answer 1

		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
S	Gross req							120	2
	On hand	20	20	20	20	20	20
	Net req							100
	Order receipt							100
	Order release					100
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
T	Gross req					200			1
	On hand	20	20	20	20	0	0	0
	Net req					180
	Order receipt					180
	Order release				180
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
U	Gross req					100			2
	On hand	30	30	30	30
	Net req					70
	Order receipt					70
	Order release			70
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
V	Gross req				180				2
	On hand	20	20	20
	Net req				160
	Order receipt				160
	Order release		160

		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
W	Gross req				180				3
	On hand	25	25	25
	Net req				155
	Order receipt				155
	Order release	155
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
X	Gross req				180				1
	On hand	30	30	30
	Net req				150
	Order receipt				150
	Order release			150
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
Y	Gross req			140					2
	On hand	40	40	0	0	0	0	0
	Net req			100
	Order receipt			100
	Order release	100
		Week	Lead Time
Item		1	2	3	4	5	6	7	​(weeks)
Z	Gross req			210					1
	On hand	210	210	0	0	0	0	0
	Net req
	Order receipt
	Order release