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.
A function check or functional test will help you measure the ability of your equipment to perform and work as it is intended to or should.
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