What is SPC?Introduce yourself to the basics of statistical process control and why it is vital for manufacturers.
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DocumentsRead our whitepapers and documentation to explore WinSPC even more deeply.
WinSPC KnowledgebaseExplore technical posts about getting things done with WinSPC.
This is a crucial distinction that is frequently confused. Basically, specification limits have to do with the voice of the customer while control limits have to do with the voice of the process. (more…)Read More
Nothing and everything. Though they are not directly linked, statistician and SPC expert Steven Wachs cautions that without evidence of process stability, capability data is useless. (more…)Read More
It’s not subjective: Because it’s an objective measure of variation, standard deviation is an essential statistical tool for increasing quality. (more…)Read More
The key is to specify a subgroup size so that significant shifts are detected with high probability and that insignificant shifts are unlikely to produce a signal. (more…)Read More
While the construction of control charts is relatively straightforward, often a more difficult question is: how do I know what process characteristics to control in the first place? (more…)Read More
By systematically detecting (and rectifying) sources of special cause variation upstream in the process, the important process outcomes become predictable. (more…)Read More
More companies are leveraging high speed vision systems to inspect multiple quality characteristics on their products. (more…)Read More
In order to maximize profitability while complying with government regulations regarding net package contents, food manufacturers and packagers must achieve an optimal balance. (more…)Read More
An approach to deploying control charts with short production runs is to utilize charts of common characteristics across different products. (more…)Read More
Characteristics with larger nominal values tend to have more variation than characteristics with smaller nominal values. (more…)Read More
Looking just at the auto industry, GM has recalled roughly 3 million vehicles this year in the U.S. alone. In 2009, GM recalled roughly 2.2 million vehicles. (more…)Read More
Unfortunately, applying "simple" tools at the expense of tools with considerably more value (and really not much more complexity or difficulty) doesn't cut it. (more…)Read More
The purpose of control charting is to regularly monitor a process so that significant process changes may be detected. (more…)Read More
An OC curve allows practitioners to determine a sample size that will result in the detection of those process changes that are of practical significance while minimizing the occurrence of false alarm. (more…)Read More
Yes, you can chart deviation-from-target. You do this by creating a Target chart, a chart that plots the deviation of subgroup values from a target value. (more…)Read More
As the bumper sticker says, "Shifts Happen" and so we generally want to use the slightly more liberal process capability of Cpk ≥ 1.33. (more…)Read More
Process Control is proactive rather than reactive. The key elements of process control are outlined in this article. (more…)Read More
August 10, 2018 Production data can be captured for use from CMMs, ERP, and gages automatically by a computer system. (more…)Read More
July 24, 2018 Inadequate measurement systems may result in inappropriate signals or even worse, charts that fail to detect important process changes. Thus, it is incumbent upon us to ensure that measurement systems are adequate for their intended use. (more…)Read More
July 13, 2018 In order for an SPC program to succeed, line operators must accept and embrace the solution. Here are 6 steps to set yourself up for success across the team. (more…)Read More
July 5, 2018 A manufacturing company that processes minerals has equipped its production leadership with live summary views. (more…)Read More
June 22, 2018 Quality managers around the country are leading initiatives to increase efficiency and lower costs. Where are you at on your Quality journey? (more…)Read More
June 6, 2018 We talk to companies everyday that are dealing with new challenges in Quality. In this video we will discuss common Quality issues and document the monetary value of SPC. (more…)Read More
May 9, 2018 Marietta Hospitality is using WinSPC to deliver safe soaps and shampoos at a high quality. (more…)Read More
May 29, 2018 An OC curve allows practitioners to determine a sample size that will result in the detection of those process changes that are of practical significance while minimizing the occurrence of false alarm. (more…)Read More
April 30, 2018 Whatever your Quality objectives, sooner or later someone is going to ask for benchmarks on Quality performance. We offer a DMAIC-based approach to delivering these milestones and benchmarks. Central to this method is the implementation of a cost-savingRead More