just in time
DESCRIPTION
This is the detail of Just In Time systemTRANSCRIPT
KanbanKanban1.1. User removes a User removes a
standard sized standard sized containercontainer
2.2. Signal is seen by Signal is seen by the producing the producing department as department as authorization to authorization to replenishreplenish
Part numbers Part numbers mark locationmark location
Signal marker Signal marker on boxeson boxes
Kanban SignalsKanban Signals As a customer “pulls” an order from finished goods, As a customer “pulls” an order from finished goods,
a signal (card) is sent to the final assembly areaa signal (card) is sent to the final assembly area
The final assembly area produces and resupplies The final assembly area produces and resupplies finished goodsfinished goods
When final assembly needs components, it sends a When final assembly needs components, it sends a signal to its suppliers, a subassembly area and a signal to its suppliers, a subassembly area and a work cellwork cellThese areas supply final assemblyThese areas supply final assembly
The work cell, in turn, sends a signal to the raw The work cell, in turn, sends a signal to the raw material supplier and the subassembly area notifies material supplier and the subassembly area notifies the work cell and purchased parts supplier of a the work cell and purchased parts supplier of a requirement requirement
Kanban SignalsKanban Signals
Work Work cellcell
Raw Raw Material Material SupplierSupplier
KanbanKanban
Purchased Purchased Parts Parts
SupplierSupplier
Sub-Sub-assemblyassembly
ShipShip
KanbanKanban
KanbanKanban
KanbanKanban
KanbanKanban
Finished Finished goodsgoods
Customer Customer orderorder
Final Final assemblyassembly
KanbanKanban
Advantages of the Advantages of the KanbanKanban A simple and understandable processA simple and understandable process Provides quick and precise informationProvides quick and precise information Low costs associated with the transfer of Low costs associated with the transfer of
informationinformation Provides quick response to changesProvides quick response to changes Limit of over-capacity in processesLimit of over-capacity in processes Avoids overproductionAvoids overproduction Is minimizing wasteIs minimizing waste Control can be maintainedControl can be maintained Delegates responsibility to line workersDelegates responsibility to line workers
The Inventory ProcessThe Inventory Process
Suppliers Customers
Finished Goods
Raw Materials
Work in Process
Fabrication & Assembly
Inventory Storage
Inventory Processing
Comparison of JIT and Comparison of JIT and TraditionalTraditional
FactorFactor TraditionalTraditional JITJIT
InventorInventoryy
Much to offset Much to offset forecast errors, late forecast errors, late deliveriesdeliveries
Minimal necessary to Minimal necessary to operateoperate
DeliverieDeliveriess
Few, largeFew, large Many, smallMany, small
Lot sizesLot sizes LargeLarge SmallSmall
Setup; Setup; runsruns
Few, long runsFew, long runs Many, short runsMany, short runs
VendorsVendors Long-term Long-term relationships are relationships are unusualunusual
PartnersPartners
WorkersWorkers Necessary to do the Necessary to do the workwork
AssetsAssets