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The parts of electronic products are from global supply chains today, when the parts came to an assembly factory to become a final products and ship to customer, assembly factory needs to record the parts they used in their products, the record could be called production history or traceability in the assembly factory. The traceability in the assembly factory helps in tracking the problem units during a quality issue happened, when a quality issue went to recall the problem units, factory would want to recall the problem units faster and precisely to reduce the rework cost and customer complaint, in that time, the accuracy and efficiency of the traceability in the assembly factory is a key ability to solve the quality issue. This study thorough a laptop assembly factory in Taiwan, trigged by its own major quality issue which caused by the traceability system failed, the factory established a cross-functional team, using QC STORY to communicate the improving process, the team has an overall investigation on its parts’ traceability system, find out those parts which would need to be improved the traceability, and establishes the improved target. By analyzing each parts attributes and the traceability method, the factory came out the proper countermeasures to improve those parts which cannot be traced before, the improved traceability system ensure the quality issue caused by traceability failed does not happen again.
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