Master production scheduling
4 important questions on Master production scheduling
What are 4 characteristics of the Mast Production Schedule (MPS)?
- Production plan (=Aggregate plan) disaggregated into individual end items
- Final word about what will be built and when
- Altering(=wijzigen, veranderen) the master schedule can alter inventory levels, lead times, capacity requirements and so on
- Should not be a "wish list"
What is the push-pull boundary (=CODP)?
What are the 4 possible push-pull boundaries? Say something about the first 3: when to use that particular push-pull boundary?
- Zie afbeelding. 4 possibilities:
- Make-to-stock (MtS)
- Assemble-to-order (AtO)
- Make-to-order (MtO)
- Engineer-to-order (EtO)
- MtS, in case of limited assortment, standard products,
- with reliable sales forecast
- low priced
- where fastness and timeliness of delivery is important
- in case production has long set-up times and/or leadtimes
- MtO, in the case of expensive customer-specific products,
- with poorly predictable sales
- where long delivery times are acceptable
- AtO (try to move PPB away from customer)
- if leadtime downstream the PPB is sufficiently short
- if organisation and production system are flexible
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What are 3 advantages of moving the Push-pull boundary upstream the product flow?
- Reduce inventory cost
- Added value of components is lower than of finished products(FP)
- Les components on stock than FP (compare 7 components each in 2 variants lead to 14 stock items of components and 27 of FP
- Reduce risk involved in keeping inventory
- Wrong products on stock
- Obsolete(=verouderd) stock / too much on stock
- Lost sales (insufficient stock)
- Increase flexibility
- Customer order (quantity, product) changes
- New product introduction
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