When we think of high-volume manufacturing, we often imagine a smoothly running factory with every machine functioning perfectly to turn out finished products efficiently and in volume. For the people running such a factory, their objective is to keep the factory running at its optimal speed with minimal downtime. This objective recognizes every machine with moving parts suffers some wear and tear and will inevitably need to be serviced or have some parts replaced. The question is when is the best time to do this: do you do it according to a fixed schedule or do you wait for the machine to start showing signs of failure?
Link- https://blog.st.com/from-preve
