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????????????????????????? Material Requirements Planning : MRP

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Title: ????????????????????????? Material Requirements Planning : MRP


1
?????????????????????????Material Requirements
Planning MRP
  • ???????????? ?????????????? ??. ?????? ???????

2
????????????????????????? (Material Requirements
Planning)
  • ??????????????????????????????????????????????????
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3
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  • ???????????????????????????????????

4
????????????????????????? (Material Requirements
Planning)
  • MRP ??????????????????????????????????????????????
    ???????????? ????????????????? ????
    ?????????????????????
  • ???????????????????????????????????????
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    ???????????????????????

5
  • ???????????????? MRP
  • ???????????????? (Master Production Scheduling)
  • ????????????????????? Bill of Material ????
    ???????????
  • ????????????????????????????????? (Inventory
    Status)

6
???????????????? MRP
7
????????????????? MRP
  • ???????????????? ?????????????????????????????????
    ???????????????????????????????????????????????
    ??????????????????????????????????????????????????
    ??????????????

8
????????????????? MRP
  • ??????????? (Bill of Material) ???????????????????
    ?????? ???????????????????????????????????????????
    ???????????????????????????

9
????????????????? MRP
  • ???????????????????????????????
    ??????????????????????????????????????????????????
    ???? ????????????????????

10
????????
11
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12
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13
Example 2
A
  1. How many Is for each A
  2. How many Es for each A

B (3)
C (2)
D (2)
E (1)
F (2)
G (5)
H (2)
I (2)
14
Example 2
a. A D I 1 2 2 4 b. A B E 1
3 1 3
A
B (3)
C (2)
D (2)
E (1)
F (2)
G (5)
H (2)
I (2)
15
??????????????????? MRP
  • ??????? MRP ?????????????????????????
    ?????????????????????????????????????????????????
    ???????????????? ??????????? ??????????????????

16
??????????????????? MRP
????????????????????????????? MRP
17
??????????????????? MRP
18
??????????????????????????????????????????????
19
MRP - 1
20
MRP - 2
21
MRP - 3
22
MRP - 4
23
MRP - 5
24
MRP - 6
25
MRP - 7
26
MRP - 8
ITEM iTouch LLC 0 PERIOD LOT SIZE None LT
1 1 2 3 4 5
Planned Order Releases 100 100 100
ITEM iPad3 LLC 0 PERIOD LOT SIZE MULT 50 LT
1 1 2 3 4 5
Planned Order Releases 50 50
ITEM A5 Chip LLC 0 PERIOD LOT SIZE MIN
100 LT 1 1 2 3 4 5
Gross Requirements Scheduled Receipts Projecte
d on Hand 150 Net Requirements Planned Order
Receipts Planned Order Releases
27
MRP 9
ITEM iTouch LLC 0 PERIOD LOT SIZE None LT
1 1 2 3 4 5
Planned Order Releases 100 100 100
x1
x1
x1
ITEM iPad3 LLC 0 PERIOD LOT SIZE MULT 50 LT
1 1 2 3 4 5
Planned Order Releases 50 50
x2
x2
ITEM A5 Chip LLC 0 PERIOD LOT SIZE MIN
100 LT 1 1 2 3 4 5
Gross Requirements 100 100 200 100 0 Scheduled
Receipts Projected on Hand 150 Net
Requirements Planned Order Receipts Planned
Order Releases
28
MRP 10
ITEM iTouch LLC 0 PERIOD LOT SIZE None LT
1 1 2 3 4 5
Planned Order Releases 100 100 100
x1
x1
x1
ITEM iPad3 LLC 0 PERIOD LOT SIZE MULT 50 LT
1 1 2 3 4 5
Planned Order Releases 50 50
x2
x2
ITEM A5 Chip LLC 0 PERIOD LOT SIZE MIN
100 LT 1 1 2 3 4 5
Gross Requirements 100 100 200 100 0 Scheduled
Receipts Projected on Hand 150 50 50 0 0 Net
Requirements 50 150 100 Planned Order
Receipts 100 150 100 Planned Order
Releases 100 150 100
29
MRP - 11
30
MRP Example 2
The IOM company produces two products A and B,
that are made from components C and D. Given the
following product structures, master scheduling
requirement and inventory information, determine
when orders should be released for A, B, C, D and
the size of those orders.
On Hand Schedules Receipts Lot Size MPS
A 10 0 None 100, period 8
B 5 0 None 200, period 6
C 140 0 Mini 150 -
D 200 250, period 2 Mult 250 -
31
MRP Example 2
A LT3
B LT2
C (3) LT4
D (2) LT2
D (3) LT2
32
MPS Item A
Item         A LLC   0 LLC   0 Period Period Period Period Period Period Period Period
Lot Size  None LT     3 LT     3 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements              
Scheduled Receipts Scheduled Receipts Scheduled Receipts                
Projected on Hand Projected on Hand 10
Net Requirements Net Requirements Net Requirements        
Planned Order Receipts Planned Order Receipts Planned Order Receipts        
Planned Order Releases Planned Order Releases Planned Order Releases        
33
MPS Item A Solution
Item         A LLC   0 LLC   0 Period Period Period Period Period Period Period Period
Lot Size  None LT     3 LT     3 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements               100
Scheduled Receipts Scheduled Receipts Scheduled Receipts                
Projected on Hand Projected on Hand 10 10 10 10 10 10 10 10 0
Net Requirements Net Requirements Net Requirements               90
Planned Order Receipts Planned Order Receipts Planned Order Receipts               90
Planned Order Releases Planned Order Releases Planned Order Releases         90      
34
MPS Item B
Item           B LLC  0 LLC  0 Period Period Period Period Period Period Period Period
Lot Size    None LT    2 LT    2 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements
Scheduled Receipts Scheduled Receipts Scheduled Receipts
Projected on Hand Projected on Hand 5
Net Requirements Net Requirements Net Requirements
Planned Order Receipts Planned Order Receipts Planned Order Receipts
Planned Order Releases Planned Order Releases Planned Order Releases
35
MPS Item B Solutions
Item           B LLC  0 LLC  0 Period Period Period Period Period Period Period Period
Lot Size    None LT    2 LT    2 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements           200    
Scheduled Receipts Scheduled Receipts Scheduled Receipts                
Projected on Hand Projected on Hand 5 5 5 5 5 5 0    
Net Requirements Net Requirements Net Requirements           195    
Planned Order Receipts Planned Order Receipts Planned Order Receipts           195    
Planned Order Releases Planned Order Releases Planned Order Releases       195        
36
MPS Item C
Item       C LLC  0 LLC  0 Period Period Period Period Period Period Period Period
Lot Size  Min   150 LT    4 LT    4 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements
Scheduled Receipts Scheduled Receipts Scheduled Receipts
Projected on Hand Projected on Hand 140
Net Requirements Net Requirements Net Requirements
Planned Order Receipts Planned Order Receipts Planned Order Receipts
Planned Order Releases Planned Order Releases Planned Order Releases
37
MPS Item C Solutions
Item       C LLC  0 LLC  0 Period Period Period Period Period Period Period Period
Lot Size  Min   150 LT    4 LT    4 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements         270      
Scheduled Receipts Scheduled Receipts Scheduled Receipts         0      
Projected on Hand Projected on Hand 140 140 140 140 140 20 20 20 20
Net Requirements Net Requirements Net Requirements         130      
Planned Order Receipts Planned Order Receipts Planned Order Receipts         150      
Planned Order Releases Planned Order Releases Planned Order Releases 150              
38
MPS Item D
Item       D LLC  1 LLC  1   Period Period Period Period Period Period Period
Lot Size  Mult  250 LT    2 LT    2 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements
Scheduled Receipts Scheduled Receipts Scheduled Receipts
Projected on Hand Projected on Hand 200
Net Requirements Net Requirements Net Requirements
Planned Order Receipts Planned Order Receipts Planned Order Receipts
Planned Order Releases Planned Order Releases Planned Order Releases
39
MPS Item D Solutions
Item       D LLC  1 LLC  1   Period Period Period Period Period Period Period
Lot Size  Mult  250 LT    2 LT    2 1 2 3 4 5 6 7 8
Gross Requirements Gross Requirements Gross Requirements       585 180      
Scheduled Receipts Scheduled Receipts Scheduled Receipts   250 0 0 0      
Projected on Hand Projected on Hand 200 200 450 450 115 185 185 185 185
Net Requirements Net Requirements Net Requirements       135 65      
Planned Order Receipts Planned Order Receipts Planned Order Receipts       250 250      
Planned Order Releases Planned Order Releases Planned Order Releases   250 250          
40
Planned Order Report Solutions
  Period Period Period Period Period
  1 2 3 4 5
A
B
C
D
41
Planned Order Report
  Period Period Period Period Period
  1 2 3 4 5
A         90
B       195  
C 150        
D   250 250    
42
???????????????? MRP
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43
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??????????????Quality Control and Management
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