three broad types of waste

three broad types of waste: muda, muri and mura;
The original seven muda 無駄 are:

• Transportation (moving products that is not actually required to perform the processing)
• Inventory (all components, work in process and finished product not being processed)
• Motion (people or equipment moving or walking more than is required to perform the processing)
• Waiting (waiting for the next production step)
• Overproduction (production ahead of demand)
• Over Processing (resulting from poor tool or product design creating activity)
• Defects (the effort involved in inspecting for and fixing defects)^[18]