Question 3: Mate rial Requirement Planning A company manufactures two products A
ID: 325533 • Letter: Q
Question
Question 3: Mate
rial Requirement Planning
A company manufactures two products A and B. Each A requires two C’s and one D. Each D requires two F’s and one E, while each E requires one F. Each product B requires one D and two E’s. The table below shows data from the inventory records.
The MPS for product A calls for 85 units to be started in week 3 and 100 units to be started in week 6. The MPS for product B calls for 180 units to be started in week 5.
Develop the material requirements plan for the next six weeks for items C, D, E and F.
DExplanation / Answer
MPS -A
Week
1
2
3
4
5
6
MPS
85
100
MRP-C (Fixed lot 220,Lead time =3 weeks ,Initial inventory=25)
Week
1
2
3
4
5
6
GR
200
SR
280
PAB (25)
305
305
135
135
135
155
POR
220
MRP D(lot for lot, Leadtime =2 weeks, Initial Inventory=0)
Week
1
2
3
4
5
6
GR
85
0
0
100
SR
PAB (0)
0
0
0
0
0
0
POR
85
100
MRP E(Fixed lot=300,LT=3 weeks, Initial Inventory=150)
Week
1
2
3
4
5
6
GR
100
0
0
0
0
0
SR
300
PAB (150)
65
65
365
565
0
0
POR
300
MRP F(POQ=2, initial inventory =600 LT=2 weeks)
Week
1
2
3
4
5
6
GR
0
200
SR
PAB (600)
130
0
0
0
POR
200
MPS B
Week
1
2
3
4
5
6
MPS
180
MRP D
Week
1
2
3
4
5
6
GR
180
SR
PAB (0)
0
0
0
0
0
0
POR
180
MRP E
Week
1
2
3
4
5
6
GR
0
360
SR
300
PAB (300)
300
-60
240
240
180
180
POR
300
MRP F
Week
1
2
3
4
5
6
GR
0
0
SR
PAB (600)
600
300
300
300
300
300
POR
Week
1
2
3
4
5
6
MPS
85
100
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