Factor
Transport
Inventory
Motion
Waiting times
Over-processing
Over-production
Defects
Impact
Moving materials
unnecessarily wastes
time and energy
Too much stock
increases costs of
storage
People moving or
travelling excessively
and unnecessarily
Wastes employee
time or keeps
customers waiting
Repeated activity
wastes time
Extra material has
storage costs
Reworking wastes
time and materials
Improvement
Reduce weight/size
of pieces to ease
handling
Ensure suitable
customer outlets
available to buy
products so no buildup
of stock occurs
Use effective project
planning to ensure
efficient performance
Equipment and
timescales planned
ahead
Elimination of
unnecessary steps in
process
Computer modelling
reduces number of
trials needed to
obtain valid results
Computer modelling
minimises trial failures