Back to the Future Day…Were we Ahead of Our Time?

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Back to the Future of SPCWe’re probably all aware by now that today is Back to the Future Day, the day in Back to the Future Part II that Marty McFly travels through time to visit October 21, 2015.  What has changed and what has endured in the period between 1985 and 2015 for the world in general and the world of SPC is fascinating. Read more

A Look in the Mirror: Robust SPC Software

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Robustness

Credit: Wikimedia Commons

Along with our users, we tout the benefits of SPC software.  We wrote the book on the core concepts of variation and how to observe it in real-time.  The idea of anticipating variation in products and processes, known as robustness, exists as an additional path to minimizing variation.  But that got us to thinking.  How have we as a software company – that helps others measure and act on variation  – developed a robust software ourselves? Read more

What Does the NFL Teach Us About SPC Software?

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Referees Blow Call at End of Game

Rules and Mehtodology

Credit: Wikimedia Commons

We know this a place for discussion of quality and SPC software, but occasionally real-life provides a great metaphor for the importance of good SPC.  One thing that all sports or games have in common is that they are based on a set of rules which keeps the game moving and provides a fair and competitive framework. Rules and methodology are critical in SPC too, but back to our sports reference first.

Lack of knowledge of the rules generated a fury of controversy in a recent Monday Night Football game.   Read more

Common Cause vs. Special Cause of Variation

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Common Cause vs. Special Cause

Common Causes vs. Special Causes of Variance

Credit: Flickr: a2gemma

It’s really not nice to always blame the humans.  We deserve some of the credit, both good and bad, but not all.  Have you heard of the source of variance being referred to as common cause vs. special cause?

Today we explore how to assign causes of variation in order to track error and be proactive.

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From Good to Worthless: Determining Loss

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Determining Loss

Determining Loss

Credit: flickr: Images Money

When we think of quality as meeting a target value, we need a way to calculate the loss incurred when we don’t hit the target. If you use tolerances, loss is easy to determine. If we know the cost of labor and materials used to fix or replace bad items, we can estimate our loss due to poor quality. Read more