8 Wastes of Lean in Everyday Life
- Asuna Yuuki
- Apr 3, 2022
- 3 min read
Updated: Apr 30, 2022
If you are striving to become a Lean organization, waste elimination is probably near the top of your list. In fact, Lean practitioners have identified very specific types of waste, known collectively as the 8 Wastes of Lean. Certain types of waste are really easy to spot and fix, while others can remain unnoticed. We thought it might be helpful to share some practical examples of how each type of waste occurs in business and in the larger world.
1. Defects/Mistakes
The other day, I ordered a taco at the local taqueria. I specifically asked for no guacamole because I really hate guacamole. Sadly, someone wasn’t paying attention, so my taco arrived fully guacamole laden. When I pointed out the error, the server tossed the taco in the garbage and set the cook to work on a new one. This is a perfect example of how mistakes cause waste. Here are a few more:
Software with bugs that has to be re-coded
Misdiagnoses in healthcare that lead to unnecessary tests or treatment
Products that are shipped to the wrong address
Manufactured items that don’t meet the customer’s specifications
Bad data entry
Information that isn't communicated effectively or well understood
2. Waiting
The waste of waiting takes two common forms. People and process often must wait because the next step in the process isn’t ready for them yet (waiting in line at a store, for example), or they are waiting because they don’t have the inputs necessary to act.
QA engineers waiting for code to be developed
Emergency room patients waiting for test results
Landscapers waiting for sod to be delivered
Airplanes waiting for a gate to open up
3. Transportation
Not all transportation is waste, of course, but the unnecessary movement of people, products, parts, or other items adds expense and risk to processes without adding value. Examples of the waste of transportation include:
Sending unsold products from the store back to the warehouse
Ordering parts or products from distant suppliers when closer options are available
Moving patients from one department to another in a hospital
Moving equipment from one construction site to another
4. Motion
Motion is similar to transportation, but it involves unnecessary activities within the workspace. For example, I prefer the grocery store near my house that is set up so the clerk removes an item from the basket and scans it, to the one that requires me to first move the item to the conveyor belt. It isn’t that I’m lazy, it just doesn’t make sense to have two people handle and move each item when it can be done just as effectively by one. Here are a few more examples:
Software that requires 10 clicks to get to the screen you want
Workers searching for missing tools or office supplies
Printers and other equipment that are not conveniently located
Inadequately stocked examination rooms
5. Overproduction
These days, just about everyone is familiar with just-in-time manufacturing and inventory management. Businesses are careful not to create products before there is demand, with good reason. Overproduction unnecessarily ties up resources and increases the likelihood of inventory and transportation waste.
Huge meals in restaurants
Hospitals with more beds than the community needs
Commuter trains with more cars than necessary
Overstaffed retail stores
Too many meetings, or the wrong people in meetings
6. Inventory
The wastes of inventory and overproduction go hand in hand. If a product is over produced, it has to be stored somewhere, tying up space and requiring additional tracking and management. Depending on where the inventory is stored, it can also lead to wasted transportation and motion. Besides the obvious idea of unsold products sitting in a warehouse, the waste of inventory can be found in lots of places:
Shelves of unused office supplies
Too much bedside equipment in a hospital
Stacks of promotional literature or pre-printed forms
Perishable items that will go bad before they are used or sold
Applications on your desktop that you never use
7. Over-processing
When Lean practitioners talk about over-processing, we are talking about adding more complexity to a product, task, or process than is necessary to get the desired value. Over-processing is not just a problem in manufacturing. It happens in every sector. Here’s what it looks like:
Software features that no one ever uses
An MRI when an X-ray would suffice
Identical data that is entered in more than one place on a form of software tool
Complex purchasing processes with multiple approval levels
8. Human Potential
Perhaps most damaging of all is the waste of human potential. Wasted human potential can lead to employee turnover, increased absenteeism, and disengagement. It happens when:
Time is spent correcting errors or responding to emergencies
Employees do not have the opportunity to learn new skills or utilize hidden ones
Employees are not involved in process improvement
Workers are not given the chance to advance within the company
Here’s the good news about waste. Every time you identify waste within your organization, you have found an opportunity for improvement. Reducing any of the 8 wastes of Lean can have a significant impact on business results.
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