The last definition of the three to the sources of waste is Muri.
Muri:
Overburden. When operators or machines for more than 100% to finish their task, they are overburdened. This is harmful both to machines and people and should be avoided.
The next definition to the sources of waste is Mura.
Mura:
Unevenness. Fluctuations in customer demand, process times per product or a variation of cycle times between different operators are examples of Mura.
Defining the sources of waste we start with the most recognised, Muda
Muda:
Waste. It could also mean uselessness or wastefulness. It can be defined as 7+1 wastes: Defects, Overproduction, Waiting, Transport, Inventory, Motion, Excess Processing and Wasted talent. Within Lean the elimination of Muda is a central concept.
The last part in this short series is about Necessary Non Value Adding.
Necessary but non-value adding. In Value Stream Mapping something that will not add value for the customer in itself but still is necessary to keep production going.
In future articles we will be delving deeper into the tool and art of Value Stream Mapping but for now this short introduction will have to suffice. All the definitions can be found in the Terminology section.
The next three parts in the series will be about value stream categorizing starting with Value Adding.
Value adding. In Value Stream Mapping, something that creates value for the customer. I production, something that adds to the actual product.
Next up in the series is the definition of Value Stream Mapping.
It is the process of mapping out and visualizing the flow of material through the Value Stream. This in turn can be used to analyze and optimize the Value Stream.
Starting of a short series on the value stream, first up is the definition of the word Value Stream.
A value stream is all actions and processes that lead from material to finished product. Where value is created for the customer.
Today a new word was added to the terminology section. Shitsuke, the last step of 5S.
Shitsuke:
The fifth step of 5S, can be translated to “discipline” but is often used as “sustain”. It is about about building a culture and process where the first four S’s are maintained. Shitsuke if achieved only where when maintaining 5S has become a habit and not a struggle.
Today a new word was added to the terminology section. Seiketsu, the fourth step of 5S.
Seiketsu:
The fourth step of 5S, often translated as “standardize”. It is about maintaining a standard for the first three steps. In a way it is about creating and auditing standards but not litteraly about the act of creating standards itself.
Today a new word was added to the terminology section. Seiso, the third step of 5S
Seiso:
The third step of 5S, literally means “cleaning”. It is about getting the workplace clean an tidy. A common misconception is that Seiso is just cleaning itself. Think of it as creating a basis for keeping a clean workplace by eliminating sources of dirt and grime.
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“If you are not willing to learn, no one can help you. If you are determined to learn, no one can stop you.”
– Zig Ziglar
“It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.”
– Mark Twain
