muda 11
| Key | Name | Detail | Aliases |
|---|---|---|---|
OVERPRODUCTION |
Overproduction |
Producing more, sooner or faster than is required by the next process.
|
overproduction, over production, making too much, over-producing, producing too soon |
INVENTORY |
Inventory |
Material held beyond what the immediate next step needs, tying up cash, space and hiding defects.
|
inventory waste, excess inventory, excess stock, wip waste, stockpiles |
WAITING |
Waiting |
Operators or material idle because the previous step, information or a machine is not ready.
|
waiting, waiting waste, idle time, queue time, delay |
TRANSPORTATION |
Transportation |
Moving material between disconnected processes and storage areas that a flow would make unnecessary.
|
transport, transportation waste, conveyance, material movement, moving material |
OVERPROCESSING |
Overprocessing |
Doing more to the part than the customer values, often because the equipment is sized for a different job.
|
over processing, overprocessing, over-engineering, inappropriate processing, excess processing |
MOTION |
Motion |
Operator movement that adds no value: walking, reaching, searching for parts or fixtures.
|
motion, motion waste, unnecessary movement, operator walking, excess motion |
DEFECTS |
Defects |
Producing parts that must be scrapped, reworked or sorted — and discovering it late.
|
defects, defect waste, scrap, rework, quality escapes, correction |
UNDERUTILISED_TALENT |
Underutilised Talent |
Failing to use the knowledge of the people closest to the work, or splitting the mapping task so no one sees the whole.
|
underutilised people, unused creativity, skills waste, untapped talent, human potential waste |
INFORMATION_BATCHING |
Information Batching |
Transferring production instruction in large batches, which destroys takt image and invites order shuffling.
|
batched information, batch scheduling, weekly release, batched instruction, information batching |
SCHEDULE_CHURN |
Schedule Churn |
Continual re-planning and expediting caused by releasing orders long before they are needed.
|
schedule churn, expediting, order shuffling, rescheduling, firefighting |
UNLEVELLED_PRODUCTION |
Unlevelled Production |
Grouping like products into long runs, amplifying variation as it travels upstream.
|
unlevelled production, unleveled production, batch building, mura, unevenness |