JUST-IN-TIME P3

7/22/2019 JUST-IN-TIME P3

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Major elements of jitMost JIT programs include continual improvement

as a maxim for day-to-day operations.

A JIT orientation includes several action programs:Reduction of setup times & lot sizes

A “no defects” goal in manufacturing

Focus on continual improvement

Worker involvement

Cellular manufacturing



jit’s impact on mpcJIT’s primary contribution is in the back end,

providing greatly streamlined execution on

the shoop floor & in purchasing

JIT can eliminate standard shop floor

reporting systems, reduce cost, reduce work

in process & lead time, and also support

better vendor scheduling



The hidden factory Logistical transactions

Balancing transactions

Quality transactions

Change transactions



Jit building blocks in mpc



Leveling the production To plan for level production, the first step is

converting the forecast to the daily

requirements for each model.



Pull system introduction A “pull” system exists when a work center is

authorized to produce only when it has been

signaled that there’s a need fo more parts in

a downstream department.



Product design & Process design Some advantages of implications for product

design are the simplification in the bill of

materials, a reduction in the number of parts

that must be planned & controlled, andreduction in the number of transactions that

have to be processed

The product redesign, in turn, opens

opportunities for process improvement



Bill of materials implication The product redesign results in a streamlined

bill of materials

The number of options from the customer’s

point of view has been maintaned, but the

number of parts required gone down



Jit applications Single-Card Kanban

Toyota

Hewlett-Packard



A service-enhanced view of

manufacturing Rapid response is critical, the number of

possible product/service combinations

continues to grow, end-item forecasting is

more difficult, and large buffer inventoriesare unacceptable.



Flexible systems Firms are coming to understand requirements

for volume & product flexibility

The company learned to go back to the

basics of JIT—product engineering, process

engineering, & the whole person concept—to

successfully implement JIT for its

nonrepetitive products.



Simplified systems and routine

execution Flow times: work must flow through the

factory so quickly that detailed tracking is

not required

The focus is on what’s scheduled in the next

time frame, rather than on when we’ll make

a product.



Managerial implications Information System Implications

Manufacturing Planning & Control

Scorekeeping

Pros & Cons



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JUST-IN-TIME P3