As Davis Balestracci frequently emphasized in his column, “RealWorldSPC,” published in Quality Digest for four years, it is fundamental to understand the context of the data before you begin to do any computations. It is the background for your data that determines how you should organize the data, how you should analyze the data, and how you should interpret the results of your analysis. Once you ignore the context, you’re like a train that has gone off the track, with the inevitable result.
Suppose you had 16 months of data on an important process (as plotted on the run chart seen in figure 1). For improvement purposes, an intervention was made after the sixth observation to lower this key process indicator. This intervention is equivalent to creating a special cause for a desired effect.
As Dirk Dusharme mentioned recently in this space (“A Bold Step Forward,” June 2008), we at Quality Digest have been working like mad these last few months to launch a major redesign of our web site, conveniently located at www.qualitydigest.com. The primary upgrade involves the addition of streaming video, most of which we script, shoot, and edit ourselves.
This issue is the first of three consecutive CMSC show-focus issues that highlight the yearly Coordinate Metrology Systems Conference. The CMSC is the largest U.S. trade show focused solely on large-scale 3-D metrology. Attendance has grown each year, with last year reaching nearly 600 attendees. All the key players in large-scale 3-D measurement are there representing every large-scale 3-D measurement technology, including laser scanners, structured-light scanners, laser radar, photogrammetry, theodolites, articulated arms, indoor GPS, and more.
Cequent Transportation Accessories, a division of TriMas Corp., located in Bloomfield Hills, Michigan, designs and manufactures a broad range of accessories for light trucks, SUVs, recreational vehicles, passenger cars, and trailers. The company has a long history of using enterprise quality management to drive market success.
Thank you, Scott Paton, for telling it like it is (“Stimulated Yet?” Quality Curmudgeon, March 2009). The bonuses at AIG and continuing troubles at General Motors make it pretty clear that bailouts don’t work. It’s also time people start taking responsibility for their actions. The real enemy is greed and until we can control the reward system, bailouts, Sarbanes-Oxley, regulation, or any other government program, we will fail, adding even more expense to the problem.
The International Manufacturing Technology Show 2008, held in Chicago, Illinois, September 8-13, posted its largest attendance since the year 2000. Total registration for the six-day event was 92,450, with 1,803 exhibiting companies.