The Traditional Yield is taken at the final step of a process to measure the effectiveness of the overall process. Specifically, it shows you the percentage of products or information that are acceptable at the end of a process. This can be calculated by dividing the final output quantity by the initial input amount and converting that calculation into a decimal or a percentage. This type of measurement does not take into account scrap, rework or any other inefficiencies in a process it only looks at what goes in and what comes out. With this in mind yield may be a good initial measurement to start with but keep in mind that it does not reveal the hidden factory.
This is the core equation used in six sigma.
The term yokoten refers to the sharing, learning and teaching of best practices laterally throughout an organization. Yokoten is often referred to as "horizontal deployment" because practice of this principle requires various levels of an organization to share, innovate spread knowledge and or improve on kaizen in a cross functional manner. A very important aspect of this critical principle is that individuals have an opportunity to exercise Genchi Genbutsu and gain consensus on improvements. At times yokoten can include benchmarking, comparing and even borrowing from other improvements, but, in the truest sense yokoten should allow people to develop and grow as a result of sharing, learning and teaching.
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