Quotes in problem solving
the lean manager believes that problem solving is about experimentation by means of plan-do-check-act.
A problem never exists in isolation; it is surrounded by other problems in space and time. The more of the context of a problem that a scientist can comprehend, the greater are his chances of finding a truly adequate solution.
Since all models are wrong the scientist must be alert to what is importantly wrong. It is inappropriate to be concerned about mice when there are tigers abroad.
In a system the best way to treat a problem is seldom where the problem appears, because of the interactions of the parts.
Making it harder to make mistakes and making mistakes that are made more visible is good. Preventing them is even better.
A good question for anybody in business to ask is What business are we in? To do well what we are doing-i.e., to turn out a good product, or good service, whatever it be? Yes, of course, but this is not enough. We must keep asking - What product or service would help our customers more? We must think about the future. What will we be making 5 years from now? 10 years from now?
The quality revolution is nothing more, or less, than the dramatic expansion of scientific problem solving using informed observation and directed experimentation to find out more about the process, the product and the customer.
When we have a fact-based worldview, we can see that the world is not as bad as it seems - and we can see what we have to do to keep making it better.
Why did the system allow that mistake to be made?
What? You can’t expect us to design systems that prevent mistakes from being made.
Yes I can. That is much more sensible than expecting people never to make a mistake.