dat, inc. produces digital audio tapes to be used in the consumer audio division. DAT lacks sufcient personnel in its inventory supply section to closely control each item stocked, so it has asked you to determine an ABC classication. Here is a sample rom the inventory records! "T#$
$%&TH'( D#$A&D
)*"C# )#* +&"T
"T#$
3 5
/00 300 3000 00 4000
12.00 14.00 3 30. 3
2 / 6 8 0
4 7
A#*A-# $%&TH'( D#$A&D 00 5,000 3,700 700 000
)*"C# )#* +&"T 0.00 3.00 .00 0 3
A9 Develop Develop an ABC class classicat ication ion or these these 0 items. items.
3. )roduct A is an end item and is made rom 3 units o B and our o C. B is made o three units o D and t:o o #. C is made o t:o units o ; and t:o o #. A has a lead time o one :eek. B, C, and # have lead times o t:o :eeks and D and ; have lead times o three :eeks. A.
uired re>uired in ?eek 0, develop the the $*) planning planning schedule, speciying :hen items are to be ordered and received. There are currently no units o inventory on hand. 3.7. DAT, "nc., needs to develop an aggregate plan or its product line. *elevant data are ! )roduct Time
hour per unit
Avg. labor cost ?ork :eek
10 hr. 7 days, 6 hours each day Assume 30 :ork days per month
Days per month
Beginning inventory
700 +nits %ne@hal month 130 per unit per month 17 per unit per month
$anagement preers to keep a constant :orkorce and production leve, absorbing variations in demand through inventory ecesses and shortages. Demand not met is carried over to the ollo:ing month. Develop an aggragate plan that :ill meet the demand and other conditions o the problem. Do not try to nd the optimum ust nd a good solution and state the
procedure you might use to test or a better solution. $ake any necessary assumptions. .3 Here are the actual tabulated demands or an item or a nine month period =Eanuary @
Actual! 0 50 70 /0 20
Eune Euly Aug.
60 40 50 40
A. ;orecast April
0.5 A bottling plant lls 3400 bottles every t:o hours. The lead time is 40 mins. And a container accommodates 30 bottles. The saety stock is 0 percent o epected demand. Ho: many kanban cards are neededF
