[原创]在MRP体系中实现JIT

Traditional

JIT

Some principle

We must make sure "master scheduling reflects the customer orders"

And Kanban system must have the production kanban transaction and contains post-deduct or back-flush logic

customer order priority to the plan

Some important change

MRP	JIT
process CO by system to open WO and initiate production	CO directly initiate production
create a stock list by system, enter load queue,delivery to production	material is in point of use
await long lot size for a new order	smaller lot size for more frequent responsiveness
wait in queue,and long lead time	lead time is relatively fixed