How to built Quality into a process: a lesson from Shigeo Shingo

Lately, I am quite busy and overwhelmed because of so many things I have to do right now. From doing many reports in my workplace as well as continuing a research project for university. However, I really so into and passionate in doing the research project particularly because the topic that I work in is both my passion and my work. I am now researching theories about Quality especially how to create a culture of quality and found a classic book from Shigeo Shingo which I fall in love with. The book is titled Zero Quality Control. I admire the wisdom he has at that time that even many people or companies today might not know about it yet. Here I will share some of his important view on built-in quality.

Young business woman presenting colorful charts and diagrams

In summary, he elaborate on his journey on finding the most effective inspection method to built quality into the process. Those three inspection methods are all currently use all over the world right now, but as he said personally that sometimes people do not know what is the right one for them and in what situation they have to use it. Those inspection systems are:

    1. Judgment inspections (inspections that discover defects)
    2. Informative inspections (inspections that reduce defects)
    3. Source inspections (inspections that eliminate defects)

Next several weeks I will try to explain what is the really the difference among them. Additionally, it is worth to mentioned here that Shigeo Shingo give a basic recipe of how to built quality into your process.Those are:

  1. Use source inspection
  2. Always use 100 percent inspections rather than sampling inspections.
  3. Minimize the time it takes to carry out correction action when abnormalities appear.
  4. Human workers are not infallible. people are human and set up effective poka-yoke devices accordingly as control functions.
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