Operating Yield
This report describes the results of the production analyses for the product dimension view, and more particularly the operating yield.
(see the Production analyses and Product analysis printing documentations)
This report describes by site and by work order the quantity yield, the time yield, the theoretical reject (product-site record) and the actual reject.
An aggregation is achieved by product and production group.
The average quantity yield is the ratio between the quantity of achieved products and the quantity of rejected products reported at the level of each operation.
This indicator measures the loss by operation.
The average time yield is the ratio between the time achieved for each operation and the effective time.
The effective time is the theoretical time related to the quantity declared at the level of each operation.
Prerequisite
List of criteria
Parameter | Parameter title | Type |
|---|---|---|
mfgfcydeb | Plant range | |
itmrefdeb | Product reference range | |
mfgnumdeb | Work order range | |
enddat | Analysis end date | D |
impselections | Print selections (Local menu No, Yes) |
Description of the report
Explanation of the formulas being used
Average quantity yield=(quantity declared to be correct at operation level/achieved quantity) *100
Average time yield=(achieved time/effective time) *100
Recorded reject=Reject/achieved
The reject is the quantity of parts declared with status R.
The achieved is the total declared quantity (A+Q+R).
Example of a calculation
Released product A , BOM of A: 2B + 1C + 25D
B | C | D | |
Link quantity | 2 - proportional | 1 - proportional | 25 -fixed |
Loss of this link | 10% | 5% | 0 |
Attachment operation in the routing | OP10 | OP20 | None |
Theoretical consumed quantity
Theoretical quantity Consumed | B (100*2*1.10) | C (100*1*1.05) | D |
220 | 105 | 25 |
Theoretical productive time
Productive time for 100 parts, proportional time | OP10 | OP20 | OP30 |
Preparation time | 1 h | 0.50 h | 2 h |
Operating time | 3 h | 5 h | 10 h |
WO tracking | OP10 | OP20 | OP30 |
Actual quantity | 105 | 100 | 90 |
Rejected quantity | 5 | 90 | 0 |
Setup time | 1.50 h | 0.65 h | 1.45 h |
Operating time | 3.30 h | 6 h | 12.50 h |
Actual consumption | B | C | D |
Actual consumption of the components | 223 | 103 | 26 |
Quantities declared in production (Entry to stock of A)
Calculation of the effective time
Operation time OP10
Total effective time
3*105/100 = 3,15
3 : Number of hours for 100 parts
105 : Number of parts reported at operation level
100 : Number of planned parts
Operation time OP20
5*100/100 = 5,00
5 : Number of hours for 100 parts
100 : Number of parts reported at operation level
100 : Number of planned parts
Operation time OP30
10*90/100 = 9,00
10 : Number of hours for 100 parts
90 : Number of parts reported at operation level
100 : Number of planned parts
Total effective time=20.65
Calculation of the average quantity yield
Status A | Status Q | Status R |
85 | 2 | 3 |
Actual productive times: 25.40 h
Productive time for 100 parts, proportional time | OP10 | OP20 | OP30 |
Preparation time | 1 h | 0.50 h | 2 h |
Operating time | 3,15 | 5 | 9 |
Total productive times | 4,15 | 5,50 | 11 h |
Total effective time=20.65
Calculation of the average quantity yield
Calculation by operation | OP10 | OP20 | OP30 |
Quantity declared to be correct | 100 | 90 | 90 |
Actual quantity | 105 | 100 | 90 |
Yield by operation | 0.9523 | 0.90 | 1.00 |
Average quantity yield: (100+90+90)/(105+100+90)*100 = 94.91 %
Average time yield: (25,40/20,65)*100 = 123,00 %
Reported reject: 3/90 *100 = 3.33 %
Released quantity: 100 A products