20180120
Standard work procedures shall be created so that anyone can manufacture products with intended functions and quality at any factory at any time.
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Customers are not as knowledgeable about our products as we. Therefore, we need to explain our products to customers fully enough. For example, our explanation shall be understandable enough for the listeners so that they can explain the same contents to their supervisors.
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Even after a quality-assurance organization is established, outflow of defective products may occur for the following reasons:
・Although all the manufacturing processes are designed to be perfect, there are still missing points(<=?).
・Processes are operated smoothly at first. However, as factory workers get more used to the operations, they tend to make mistakes because they lose consciousness.
･After customers have determined the quality level, they sometimes raise it.
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■We must not outflow any defective products to the market. If a defective product is found in a manufacturing process, we need to take the following prompt actions:
- Assign a responsible person. Define actions to take.
- Investigate whether there is another defective product, and where in the process the defective product was found.
- Separate products already inspected from products not yet inspected.
- If any defective product has outflowed into the market, QA Section needs to contact related sections immediately, and to decide and implement countermeasures promptly.
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Most defects occur after design change. After a design of a product is changed, QA Section needs to monitor the quality-control status and to keep records on a daily basis.
High defect ratio may imperil the entire business of our company.
