Most of our time should be spent doing value added work. However, if you take a look at the total lead time through value stream you will discover that “Muda” or waste steals a lot of our time. Another thing that a lot of companies do is to try and reduce the overall lead time by making the value add process more efficient. In reality there’s more value in reducing the waste in the process first before worrying about improving the value added steps.
In lean, motion refers to any movement of people. The waste of motion is any motion that occurs, which doesn’t add value to the product. Common examples of this in the workplace, include retrieving tools or equipment (including reaching for them), searching for missing information, and exerting effort to lift things from the ground. Any excess motion or effort more than what is required to add value to a product is considered waste.