Operations and Supply Chain Management The Core

288 OPERATIONS AND SUPPLY CHAIN MANAGEMENT
c.
SINGLE-LEVEL
PARTS LIST
INDENTED PARTS LIST
M
M
N (2)
N(2)
P (3)
R(2)
N S (1)
R (2) T (3)
S (4) S (4)
R P (3)
S (1) T (2)
T (3) U (4)
P
T (2)
U (4)
SOLVED PROBLEM 3
Given the product structure diagram, and the data given below, complete the MRP records for parts
A, B, and C.
C
A
B (2)
C
Solution
WEEK
ITEM 1 2 3 4 5 6
A Gross requirements 5 15 18 8 12 22
LT = 1 week
Scheduled receipts
On-hand = 21
Projected available balance
Safety stock = 0
Net requirements
Order quantity = 20 Planned-order receipts
Planned-order releases
B
Gross requirements
LT = 2 weeks Scheduled receipts 32
On-hand = 20
Projected available balance
Safety stock = 0
Net requirements
Order quantity = 40 Planned-order receipts
Planned-order releases
C
Gross requirements
LT = 1 week
Scheduled receipts
On-hand = 70
Projected available balance
Safety Stock = 10
Net requirements
Order quantity = lot-for-lot Planned-order receipts
Planned-order releases
WEEK
ITEM 1 2 3 4 5 6
A Gross requirements 5 15 18 8 12 22
LT = 1 week
Scheduled receipts
On-hand = 21 Projected available balance 16 1 3 15 3 1
Safety stock = 0 Net requirements 17 5 19
Order quantity = 20 Planned-order receipts 20 20 20
Planned-order releases 20 20 20
B Gross requirements 40 40 40
LT = 2 weeks Scheduled receipts 32
On-hand = 20 Projected available balance 52 12 12 12 12 12
Safety stock = 0 Net requirements 28 28
Order quantity = 40 Planned-order receipts 40 40
Planned-order releases 40 40
C Gross requirements 40 20 60 20
LT = 1 week
Scheduled receipts
On-hand = 70 Projected available balance 20 0 0 0 0 0
Safety stock = 10 Net requirements 60 20
Order quantity = lot-for-lot Planned-order receipts 60 20
Planned-order releases 60 20