Wikipedia editor’s personal feelings about a topic. These are usually harder to eliminate because while classified as non-value adding, they may still be necessary. For example, while an end-customer might not view quality inspection in car assembly as value-adding, it types of wastes associated with manufacturing process pdf necessary to ensure the car meets safety standards.
These contribute to waste, incur hidden costs, and should be eliminated. One of the key steps in lean process and TPS is to identify which activities add value and which do not, then to progressively work to improve or eliminate them. Later, an eighth waste, unused skills, was added. Every time a product is touched or moved unnecessarily there is a risk that it could be damaged, lost, delayed, etc. Transportation does not add value to the product, i. The longer a product sits in one of these states, the more it contributes to waste.