Rockit Electronics manufactures a line of digital blue ray players. The player is made from one subassembly of B and one subassembly of C.   B is made of three units of D and two of E. C is made of two units of F and two of E. The blue ray has a lead time of one week. B, C, and E have lead times of two weeks, and D and F have lead times of three weeks. As the production manager, you need to figure out the MRP planning schedule. 1. What is the bill of materials (product structure tree)? 2. If 1,000 units of blue ray players are required in week 10, what is the MRP schedule? Specifically, when items are to be ordered and received.  Assume we have no units of inventory on hand.

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
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Chapter13: Regression And Forecasting Models
Section: Chapter Questions
Problem 31P
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Rockit Electronics manufactures a line of digital blue ray players. The player is made from one subassembly of B and one subassembly of C.  
B is made of three units of D and two of E. C is made of two units of F and two of E.
The blue ray has a lead time of one week. B, C, and E have lead times of two weeks, and D and F have lead times of three weeks.
As the production manager, you need to figure out the MRP planning schedule.

1. What is the bill of materials (product structure tree)?
2. If 1,000 units of blue ray players are required in week 10, what is the MRP schedule? Specifically, when items are to be ordered and received. 
Assume we have no units of inventory on hand.

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Problem 2:
Item
LT=
Onhand=
Item
Rockit Electronics manufactures a line of digital blue ray players. The player is made from one subassembly of B and one subassembly of C.
B is made of three units of D and two of E. C is made of two units of F and two of E.
The blue ray has a lead time of one week. B, C, and E have lead times of two weeks, and D and F have lead times of three weeks.
As the production manager, you need to figure out the MRP planning schedule.
|LT=
Onhand=
a. What is the bill of materials (product structure tree)?
b. If 1,000 units of blue ray players are required in week 10, what is the MRP schedule? Specifically, when items are to be ordered and received.
Assume we have no units of inventory on hand.
Period
Item
LT=
Onhand=
Item
|LT=
Onhand=
Item
|LT=
Onhand=
Item
|LT=
Onhand=
Gross requirements
Scheduled receipts
On hand from prior period
Net requirements
Planned order receipts
Planned order releases
Gross requirements
Scheduled receipts
On hand from prior period
D
Net requirements
Planned order receipts
Planned order releases
Gross requirements
Scheduled receipts
On hand from prior period
Net requirements
Planned order receipts
Planned order releases
Gross requirements
Scheduled receipts
On hand from prior period
Net requirements
Planned order receipts
Planned order releases
Gross requirements
Scheduled receipts
On hand from prior period
Net requirements
Planned order receipts
Planned order releases
Gross requirements
E
Scheduled receipts
On hand from prior period
Net requirements
Planned order receipts
Planned order releases
F
1
2
H
3
I
4
5
L
6
7
8
M
9
10
N
O
P
Q
R
Item On-Hand Lead Time (Weeks)
A
B
C
D
F
F
S
T
Transcribed Image Text:2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 40 Problem 2: Item LT= Onhand= Item Rockit Electronics manufactures a line of digital blue ray players. The player is made from one subassembly of B and one subassembly of C. B is made of three units of D and two of E. C is made of two units of F and two of E. The blue ray has a lead time of one week. B, C, and E have lead times of two weeks, and D and F have lead times of three weeks. As the production manager, you need to figure out the MRP planning schedule. |LT= Onhand= a. What is the bill of materials (product structure tree)? b. If 1,000 units of blue ray players are required in week 10, what is the MRP schedule? Specifically, when items are to be ordered and received. Assume we have no units of inventory on hand. Period Item LT= Onhand= Item |LT= Onhand= Item |LT= Onhand= Item |LT= Onhand= Gross requirements Scheduled receipts On hand from prior period Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts On hand from prior period D Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts On hand from prior period Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts On hand from prior period Net requirements Planned order receipts Planned order releases Gross requirements Scheduled receipts On hand from prior period Net requirements Planned order receipts Planned order releases Gross requirements E Scheduled receipts On hand from prior period Net requirements Planned order receipts Planned order releases F 1 2 H 3 I 4 5 L 6 7 8 M 9 10 N O P Q R Item On-Hand Lead Time (Weeks) A B C D F F S T
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Cengage,