8 TYPES OF MUDA WASTE
IN LEAN
TIM WOODS

ACRONYMS FOR LEAN WASTE
• TIM WOODS
• DOWNTIME

TIM WOODS

TRANSPORTATION
Transportation is the unneeded movement of people
or parts through the process flow. This process is the
waste involved with transporting goods when the
processes are not in a logical order.
T

INVENTORY
The storage of excess inventory that leads to wasted
money, wasted space or possible obsolescence with long
term storage of goods. Goods/product can also be
damaged or have their value expire while being stored.
I

MOTION
Movement waste within a process caused by extra
steps or unnecessary movement to complete the
process.
M

WAITING
This is the waste that occurs when waiting for work
through too long of cycle times or other issues
slowing the work through the workflow.
W

OVERPROCESSING
Processing the work beyond the agreed specifications
that result in no meaningful advantage but increases
costs and/or time.
O

OVERPRODUCTION
Producing more product than is needed or required,
possibly leading to the product becoming obsolete
before the value can be realized.
O

DEFECTS
Non-conforming parts or parts that do not meet the
agreed upon standard. Low quality or failed quality
work.
D

SKILLS UNDERUTILIZED
The wasted skills of staff that are given tasks below
their skill levels.
S

8 TYPES OF MUDA WASTE IN LEAN
Joshua Render
https://agile-mercurial.com
https://twentyfirstcenturyworkforce.com/
8 Types of Muda Waste: https://agile-mercurial.com/2019/02/12/8-types-of-muda-waste-in-lean/
TIM WOODS and Lean Waste:https://agile-mercurial.com/2019/04/29/tim-woods-and-lean-waste/