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• PUSH AND PULL PRODUCTION CONTROL SYSTEMS: - Coggle Diagram
• PUSH AND PULL PRODUCTION CONTROL SYSTEMS:
Production Planning Process
Aggregate planning
capacity
involves all the products and products families
resources required
Production Planning
demand forecast
how much I need to produce.
attach each specific detail with each product
Broken down
MPS( The master production schedule)
will specify the number and the production date,
unaggregate items
5 data sources
Firm customer orders
Forecasts of future demand by item
Safety stock requirements
Seasonal Plans
Internal orders from other parts of the organization
gathering and coordinating of the information
MRP (The materials requirements planning system)
a production schedule for an end product to a set of requirements for all of the
subassemblies and parts required to make that item.
The MPS is broken down into a detailed schedule of production for each of the
components that comprise an end item.
planned order releases
The detailed job shop schedule
when actually I will be producing them
MRP are translated into specific shop floor schedules
Push versus Pull System
Push System
in advance
units are pushed to the next level
MRP
Pull System
Only when requested
JIT
THE EXPLOSION CALCULUS
The product structure diagram
two basic operations
Time phasing:
shifted backwards
Multiplication: