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

Wait, what? It seems something strange for an SPC software provider to assert.  While it still has it’s place and seems to still be the preferred (and necessary) approach for many companies, having software installed in-house on dozens, if not, hundreds of workstations is gradually becoming passé.  Instead the need for conventional “software” as we have know it is being replaced by cloud based applications.  We all need to be prepared.

Cloud SPC is Here

Cloud based applications have altered both our business and personal lives.  They’ve changed how we pay bills, generate sales, track accounting, file taxes, manage inventory, and many other tasks.  With the recent launch of a Synergy “true cloud SPC” solution the decision process for adopting SPC has changed. These are 4 questions you should ask as you choose installed software vs. cloud SPC. Read more

Choosing an SPC software solution that violates SPC methodology and rules WILL negatively impact your efforts to improve processes and products.  

Each and every important decision we are faced with needs to be based on a true and accurate representation of the facts. If decisions are based on questionable interpretation, the consequences can be significant. Choosing an SPC software solution, as a partner in your business, should be no different. The consequences of non-compliant statistical process control, SPC, software has to be considered. Don’t fall victim to a solution that contains outdated technology or has been over promised. Your decision should be based on choosing a current solution that is rooted in strong SPC fundamentals, methodologies and applies SPC rules correctly. Read more

In the previous posts in this series, we gained an understanding of what the quality means and that it has a different meaning to different parties.  We then acknowledged that the way the customer defines quality, while highly subjective and of utmost concern, can be simplified.  Today, we walk a step further, considering how a producer’s view on quality, while technically closer to optimal, may not be the best for business.  This variance in process and results is how quality affects your customer’s buying choice.  Let explore this further.

The illustration below shows the output of two companies making the same part. Company A has much tighter control over the dimension but their process is centered near the low limit. Company B, however, doesn’t have enough control to keep their products within spec all the time and produces a 3% out-of-spec product.

FIgure 1-1 The Book of Statistical Process Control

From a producer’s point of view, Company A would appear to be the better company. The tighter control of the dimensions reduces the cost of materials.


Zontec has taken SPC and made it simple and Cloud SPC is the place to realize the benefits of quality to your organization. Or…

Request a Demo Button


Company A has much tighter control over the dimension but their process is centered near the low limit. Company B, however, doesn’t have enough control to keep their products within spec all the time and produces a 3% out-of-spec product. Again, from a producer’s point of view, Company A would appear to be the better company. The tighter control of the dimensions reduces the cost of materials.

But this is only one way to look at it.  What about the customer’s point-of-view?

Read more

In the 35+ years since our founding, we’ve detailed the concepts of quality and SPC to a great degree. However, it’s important from time to time to remind ourselves just what is quality and why is it important.

Before we can control quality, we need to understand what the word “quality” means. Quality, like beauty, is in the eye of the beholder. Each of us judges the quality of many items every day, and we each have a different idea about what quality is for each item. We know what we like or what we want, and what we don’t like or want. How we determine the quality of an item depends on both our personal preference and our frame of reference for that particular item. Read more