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Quality During Design Podcast Blog

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When it’s Not Normal: How to Choose from a Library of Distributions

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When trying to fit a probability distribution to quantitative results, sometimes the normal probability doesn’t fit. Minitab has a wealth of distributions to pick from. Do you just pick whichever one Minitab tells you fits the best? Maybe not. Just because the distribution fits your data doesn’t mean it’s a good one to use. We…

What are TQM, QFD, Six Sigma, and Lean?

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You may have heard of QMS but are not sure how your activities fit in. Or, you’ve heard of QFD, ISO 9000, Six Sigma, Lean…these cryptic names that you’re not sure what they’re about. You may be doing activities under one of your company’s procedures and asking, “Why am I spending time on this?”  Sometimes it’s good to re-orient to the big picture.…

The Designer’s Important Influence on Monitoring After Launch

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How to Handle Competing Failure Modes

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If we’re not careful with or ignore failure modes, we can choose the wrong reliability model or statistical distribution. If our product performance is close to the required limits and/or we need a very accurate model, this could be a big problem. We talk about the importance of failure modes and step-through a tensile-test example…

About Using Slide Decks for Technical Design Reviews

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A danger of using slide decks for technical design reviews is loss of important technical information. In order to summarize something in a slide or slide deck, the presenter thins-out information without its raw data and divorces it from the plots, graphs, and other technical analyses. Slide decks are useful to the presenter to pull…

Remaking Risk-Based Decisions: Allowing Ourselves to Change our Minds.

We can use FMEA to help us make risk-based decisions about our product within changing and evolving use environments and scenarios.