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The term poka-yoke was applied by Shigeo Shingo in the 1960s to industrial processes designed to prevent human errors. [1] Shingo redesigned a process in which factory workers, while assembling a small switch, would often forget to insert the required spring under one of the switch buttons.
The first example of this at Toyota was the auto-activated loom of Sakichi Toyoda that automatically and immediately stopped the loom if the vertical or lateral threads broke or ran out. For instance rather than waiting until the end of a production line to inspect a finished product, autonomation may be employed at early steps in the process ...
Prevention, in the form of "pledging ourselves to make a constant conscious effort to do our jobs right the first time", is the only way to guarantee zero defects. Beyond that, examining the production process for steps where defects can occur and mistake proofing them contributes to defect-free production. [16] [17]
Six Sigma (6σ) is a set of techniques and tools for process improvement.It was introduced by American engineer Bill Smith while working at Motorola in 1986. [1] [2]Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes.
Preventive action is any proactive method used to determine potential discrepancies before they occur and to ensure that they do not happen (thereby including, for example, preventive maintenance, management review or other common forms of risk avoidance). Corrective and preventive actions include stages for investigation, action, review, and ...
The theorist of important innovations related to Industrial engineering, such as Poka-yoke and the Zero Quality Control, Shingō could influence fields other than manufacturing. For example, his concepts of SMED, mistake-proofing, and "zero quality control" (eliminating the need for inspection of results) have all been applied in the sales ...
For those who already have coverage but want to cut costs, there are some simple ways to save. Increasing your deductible is one of the quickest, but make sure you can afford to cover the ...
All the potential causes for a failure mode should be identified and documented. This should be in technical terms. Examples of causes are: Human errors in handling, Manufacturing induced faults, Fatigue, Creep, Abrasive wear, erroneous algorithms, excessive voltage or improper operating conditions or use (depending on the used ground rules).