The 7 Wastes and the 8 Wastes

7, 8, 9 ,,,, how many are they really?

Well, in reality there are much more than 7 or 8. We normally use 7 or 8 because they cover all the major things and teaching 7 or 8 is easier that 9, 10 or more.

Here are some good ways to remember the 7 or 8 wastes. If you have more, please submit your comment

Tim Wood
T= Transportation
I = Inventory
M= Motion
W= Waiting
O= Overproduction
O= Over processing
D= Defects

Here is the other one

Worm pit
W= Waiting
O= Overproduction
R= Rework
M= Motion
P= Processing excessively
I= Inventory
T= Transportation

Another one

Down Time
D= Defects
O= Overproduction
W= Waiting
N= Non Utilized people (The 8th waste)
T= Transportation
I= Inventory
M= Motion
E= Excessive processing