Muda (Waste)

Muda is a Japanese word that means a waste or an activity with no added value. In difficult times like these, you must pay attention to every possible saving of time and money and Kaizen comes to our aid precisely to make the most of this work by identifying and removing all waste.

But what benefits derive from the elimination of waste? The main ones are the following:
- Saving money
- Increased productivity due to a saving of time to do a job
- Machinery, equipment and parts available when needed
- Procedures and standardized processes
- Increased customer satisfaction
- Morale
- Improved communications

As said the Japanese term MUDA identifies activities that add no value are unnecessary or unproductive.
The following "seven wastes" (Seven Wastes) identify and classify the resources that are usually wasted. They wereidentified by Taiichi Ohno, Toyota's chief engineer, as part of the Toyota Production System:

These 7 wastes can be remembered through the acronym TIM WOOD

Transportation: Each time a product is transferred may be damaged, lost, delayed, etc. so it becomes a cost that does not produce value. Transport does not introduce any change to the product that the customer is willing to pay for.

Inventory: The stocks, whether in the form of raw materials, materials in process (WIP) or finished products, representing a capital that has not yet produced a gain for both the manufacturer and the customer. Each of these three items not yet processed to produce value is a waste.

Motion Movement: It's similar to transport, but refers instead to the products, workers or machines. These can be damaged, worn, safety problems.

Waiting  This refers to both the time spent by workers waiting for the resource is available, is the capital tied up in goods and services that have not yet been delivered to the customer.

Over processing: Using resources more expensive than necessary for productive activities or to add more features than those originally requested by the customer, only produces waste. There is a particular problem in this sense where operators concerned. Operators who hold a qualification higher than that necessary to achieve the required activities, are therefore costly to maintain with skills that are wasted in the production of low-skilled activities.

Overproduction: Overproduction is the production or acquisition of goods before they are actually needed. It's very dangerous waste for companies because it tends to hide production problems. The excess must be stored, managed and protected, thereby generating more waste.

Defects: Defects result in customer complaints. The effort required to create these defects is also a waste.

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