Measuring the ROI of Your SPC Software

Learn how to quantify the value of your quality system. Video Transcription Good afternoon, my name is Steve Wise, I am the vice president of statistical methods for Infinity QS and I’ve been playing in the world of statistics and manufacturing environments since about 1986. And so, what I want to talk about today is … Continued

How Walmart Ensures Product Quality Through Traceability

Recently, product recalls have been dominating the news. From cars that don’t brake properly to pills that don’t properly release time-sensitive medication to child safety seats that detach while the vehicle is moving, more and more companies are experiencing the pitfalls associated with a lack of enterprise quality management. Walmart, however, is one company that has … Continued

What is Manufacturing Quality Control?

Think of the amount of work required to transform a car from a random collection of assorted parts into the assembled entity that it is when it reaches the end of a production line. Cars don’t just spontaneously appear. There are a multitude of pieces that have to be put together in order to create … Continued

Organizing Charts in Engineering Mode: The Matrix Style

You have four charts and only one computer screen. How do you consolidate to a multiple chart view to compare data without having to thumb through individual charts? You might be tempted to resort to flashy, “Matrix”-style moves, but fear not, there is a simpler approach that is just as effective and doesn’t require stretching. … Continued

Modifying Control Chart Sensitivity

Control limits are typically set at +/- 3 standard deviations for the statistic being plotted. That‘s how traditional Shewhart control charts have been constructed for nearly a century. The result is a statistical tool that is simple and elegant, yet robust enough to tackle all manner of different situations and distributions of data. Control limits and their widths … Continued

3 “Nevers” of Control Limits, Part 2

Never allow control limits to be automatically recalculated I was hiking in the Smoky Mountains National Park with a colleague, and we happened upon fellow hikers. Being the friendly sorts that we are, we stopped to take a breather and chat with our new female friends. We enjoyed resting and speaking with the women until … Continued