Problem -
Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 Ultima Steppers, which are to be shipped in week 8. Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. Below is information about the steppers:
Item
|
Lead Time
|
On-hand Inventory
|
Components
|
Stepper
|
2
|
20
|
A(1), B(3), c(2)
|
A
|
1
|
10
|
D(1), F(2)
|
B
|
2
|
30
|
E(1), F(3)
|
C
|
3
|
10
|
D(2), E(3)
|
D
|
1
|
15
|
|
E
|
2
|
5
|
|
F
|
2
|
20
|
|
a) Develop a product structure for Heather.
b) Develop a time-phased structure.
c) Develop a net material requirements plan for F.