This blog was originally published in March 2017 and has been since updated to reflect any changes deemed necessary.
In the world of manufacturing, there exists what is known as the "acceptable failure rate." It is something all engineers and manufacturers have to take into consideration when developing and producing a product. It is defined as the frequency with which an engineered system or component fails, expressed in failures per unit of time. Acceptable failure rates depend solely on the industry and product. Depending what sector, you are manufacturing for, it could be as high as 3 out of every 100 or as low as 1 out of every 1,000,000.