Randy Smith, Inventory Control Manager. Randy Smith was very proud of
his new position as inventory control manager for the Johnson Trinket Company.
His primary responsibility had been fairly clearly defined:
Maintain an inventory level in the warehouse that ensures that
production will not run
out of stock, yet also maintain an
inventory level that will minimize inventory holding and
control costs. Since Randy had recently
had a course in materials management, he knew an
approach that should help him. He decided
to make a list of inventory items in one small
section of the warehouse to see if he
could develop a good plan for inventory control. If it
worked in the one small section, he could
expand it to the rest of the more than 30,000
part numbers in the warehouse.
The following is the data Randy compiled:
Part Number |
Part unit value in $ |
Quantity currently in inventory |
Average annual usage |
1234 |
$2.50 |
300 |
3000 |
1235 |
$0.20 |
550 |
900 |
1236 |
$15.00 |
400 |
1000 |
1237 |
$0.75 |
50 |
7900 |
1238 |
$0.76 |
180 |
2800 |
1239 |
$4.40 |
20 |
5000 |
1240 |
$1.80 |
200 |
1800 |
1241 |
$0.05 |
10 |
1200 |
1242 |
$17.20 |
950 |
2000 |
1243 |
$9.00 |
160 |
2500 |
1244 |
$3.20 |
430 |
7000 |
1245 |
$0.30 |
500 |
10000 |
1246 |
$1.10 |
25 |
7500 |
1247 |
$8.10 |
60 |
2100 |
1248 |
$5.00 |
390 |
4000 |
1249 |
$0.90 |
830 |
6500 |
1250 |
$6.00 |
700 |
3100 |
1251 |
$2.20 |
80 |
6000 |
1252 |
$1.20 |
480 |
4500 |
1253 |
$5.90 |
230 |
900 |
When Randy scanned the list, he noticed several things that disturbed
him, and he asked
one of the experienced inventory clerks.
The following list summarizes the part number
issues that concerned Randy, and the
explanation from the clerk:
Part number 1236, a very expensive part with almost half-a-year’s worth
of inventory.
This part is used for a product that has
very cyclical demand, and the busy time of the
year is about to start.
Part number 1241 is very inexpensive, yet the inventory is very small.
This part has a
supplier with an erratic delivery history,
and the part also has a very long lead time. A
lot of 150 has been on order for some
time, and is now several days past due.
Part number 1242, like 1236, is expensive with almost half a year worth
of inventory—
this part is shipped to a location on the
other side of the country and is being accumu-
lated into a large lot to save shipping
costs.
Part number 1246 is not too expensive, with a low inventory. This part
is produced in-
house, and has a quality tolerance that
the older equipment, which was used to pro-
duce it, had a difficult time meeting. The
last batch was rejected by the quality
department.
Part number 1253 is moderately expensive with a large inventory
compared to usage.
This part was subject to a recent quality
audit, and almost 150 of the items were
rejected as a result of that audit.
Once Randy understood some of the issues, suddenly he did not feel
quite as confi-
dent that he had the best approach in mind
to control the inventory to meet the
expectations of his boss.
Assignment
(1). Use Microsoft EXCEL and the information above to evaluate the current
situation. Also, create an ABC Analysis Chart in EXCEL.
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