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Supply Chain Concepts
Muda
Major Topic Area: Lean, TOC
Muda is a Japanese term referring to the elimination of waste.
Waste can be defined as anything that is non-value adding. Therefore, Muda can also be thought of as a process to eliminate non-value adding activities.
The following table summarizes the 7 different waste categories.
| Waste Category | Short Description |
| Overproduction | excess inventory |
| Waiting | delays |
| Transportation | unneeded movement |
| Processing | Poor process design |
| Motion | activities that don't add value |
| Inventory | Inventory with no immediate use |
| Defective | Poor quality |
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