A customer recently wanted to analyze the parametric variation of a key parameter measured at final test at the end of manufacturing. How does that parameter vary across the lots made in 2019? How hard can it be? Actually, it’s very easy with a good software system and the plot is really very satisfying. But what’s going on behind the scenes?
Poll: Should the UK’s railways be renationalised?
Rail passenger numbers declined from 1.27 million in 1946 to 735,000 in 1994 a fall of 42% over 49 years. In 2019 the last pre-Covid year the number...