Aggregate Planning and JIT - Week 5

 0    11 speciālā zīme    dklekowski
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planning horizons
sākt mācīties
operational, tactical, strategic
operational decisions (up to3 months)
sākt mācīties
short-range plans: job assignments, ordering, job scheduling, dispatching
tactical decisions (up to 2 years)
sākt mācīties
intermediate-range plans: sales planning, production planning and budgeting, setting employment, subcontracting levels
strategic decisions (up to 5 years)
sākt mācīties
long-range plans: R&D, new product plans, capital expenses, facility location
Aggregate planning Goals
sākt mācīties
meet demand, use capacity efficiently, minimise cost, meet inventory policy
AP strategies
sākt mācīties
change capacity - inventory levels, varying work force, subcontracting, using part-time workers; change demand - influencing demand, backordering during high demand periods; Mixed strategy
Just-in-Time
sākt mācīties
supplies end components are pulled through the system to arrive where and when are needed; attacks waste; exposes problems and bottlenecks; Lean production is its western implementation
7 wastes of JIT
sākt mācīties
overproducing, waiting, transportation, inefficient processing, inventory, unnecessary motion, product defects
push system (MRP)
sākt mācīties
material is pushed into downstream workstations, regardless of whether resources are available; make-to-stock
pull system (JIT)
sākt mācīties
material is pulled to a workstation just as it is need; make-to-order
Results of JIT
sākt mācīties
queue and delay reduction: speeds throughput, frees assets; quality improvement, cost reductions, rework reduction, variability reductions in the workplace

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