Control Checklist for the 7 Wastes

What the seven wastes are

The seven wastes are the categories of non-value-adding activity identified in Lean methodology: transportation, inventory, motion, waiting, overproduction, overprocessing, and defects. Each one consumes time, space, or effort without adding value to the product. This checklist helps quality and operations teams surface them in a manufacturing environment by turning each category into practical questions about layout, organization, scheduling, and control.

Why it matters

Waste shows up as unnecessary movement, excess stock, idle time, rework, and over-complex process steps. Left unchecked it erodes productivity and hides underlying problems in the workflow. Walking the floor against a structured set of questions makes those inefficiencies visible, so you can act on them rather than discover them later in cost or quality data.

What the inspection covers

The checklist works through each waste in turn. Under **transportation** it asks about facility layout, batch sizes, storage-area accessibility, and supplier shipment reliability. **Inventory** questions cover work-in-progress quality checks and how finished products are packaged and stored. **Motion** looks at work-station design, workplace organization, whether parts move according to design specifications, and whether the **5S** methodology is consistently applied. **Waiting** examines workload balance, equipment failures, and setup times. **Overproduction** and **overprocessing** questions address material handling, prompt communication of decisions or authorizations, adherence to the production schedule, alignment of that schedule with actual needs, and whether the manufacturing process operates as designed. **Defects** covers redundant approvals or reworks, process controls, incoming material quality, operator training, and the clarity of work instructions.

Carrying out the inspection

Record the conduct date, who prepared it, and the location before you begin. Then work feature by feature and answer each question — each is a simple Yes or No. Capture the finish time and the actual inspection start and end dates, and close with a signature.

Frequently Asked Questions

It examines the seven wastes defined in Lean methodology: transportation, inventory, motion, waiting, overproduction, overprocessing, and defects. For each waste it asks practical questions about the related operations — facility layout, batch sizes, storage accessibility, supplier reliability, work-station design, 5S, workload balance, equipment failures, setup times, material handling, communication of decisions, production scheduling, redundant approvals or reworks, process controls, incoming material quality, operator training, and work instruction clarity.

You work through each of the seven wastes in turn — transportation, inventory, motion, waiting, overproduction, overprocessing, and defects — answering the checklist questions about the related processes and conditions. Each question is answered Yes or No. The layout and inventory questions assess facility design, batch sizes, storage access, supplier reliability, work-in-progress quality checks, and finished-goods packaging; the motion, waiting and overproduction questions assess work-station design, organization, 5S application, workload balance, equipment failures, setup times, material handling, communication of decisions, and schedule adherence. You record the date conducted, who prepared it, and the location, and close with the signature, finish time, and actual inspection start and end dates.

The disciplines it ties into — 5S, facility layout planning, workload balancing, setup time reduction, and quality control — apply broadly to production operations. Apply the categories and the specific questions to your own processes to find and reduce waste wherever goods are made.

Yes. Each question is answered Yes or No, giving a clear picture of where waste is present across the seven categories.

Written by

Arne Reis

Founder

Process optimizer with 25 years of expertise, focused on operational excellence in quality, maintenance, EHS, and commissioning. Emphasizes innovative solutions and top-quality standards.

View LinkedIn profile