Seven Wastes of Lean

In Lean Manufacturing, there are seven specific types of waste that are identified and targeted for elimination in order to improve efficiency and increase value for the customer. These wastes are also applicable in Lean software development. The seven wastes are:

1. Overproduction: producing more than what is needed, resulting in excess inventory and wasted resources.
2. Waiting: delays in the process, such as waiting for approval or waiting for equipment, that add no value to the product.
3. Unnecessary Motion: unnecessary movement of people or equipment, which increases the risk of errors and reduces efficiency.
4. Over-processing: performing more work than is necessary to meet the customer's requirements, resulting in wasted time and resources.
5. Excess Inventory: holding more inventory than is needed, which ties up capital and increases the risk of defects.
6. Defects: the cost of reworking or scrapping defective products, as well as the cost of lost time and lost opportunities.
7. Unnecessary Transport: moving products or materials more than is necessary, which increases the risk of damage and reduces efficiency.

By identifying and eliminating these wastes, teams can improve the overall efficiency of the process and deliver more value to the customer. This can be achieved by implementing Lean software development practices such as Kanban, Scrum, and continuous improvement.