The 7 Types of Waste

The layout of each production or assembly line significantly drives the overall operating costs. A lean layout enables further lean activities, which further reduces total costs. Obeyaka is the arrangement of stations and operators which are sorted according to a clear structure of materials, men and machines (3M).

Elimination of Waste leads to Cost & Market Leadership

The 7 Types of Waste

All lean activities aim on the target to permanently reduce waste in a business. Waste occurs in different variations and may be visible or not. The seven types of waste are defined as the causes for inefficiency.

7 Types of Waste_Overproduction

To produce sooner, faster or in greater quantities than customer demand is actually.

Raw material, work in progress (WIP) or finished goods which customer has not received.

Unnecessary movement of people, products or materials between processes.

Unnecessary movement of people, parts or machines within a process.

People or parts that waiting for work cycle to be completed or for the next step in the process.

Products or services, that does not meet customer expectations. The result is rework or scrap.

Processing beyond the requirements of the customer.


Training document – The 7 Types of Waste (pptx)
Training document – The 7 Types of Waste (PDF)
Handout – The 7 Types of Waste (PDF)