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Measuring Cost of Quality August 29, 2016

Posted by Tim Rodgers in Operations, Process engineering, Quality, Supply chain.
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I’ve always thought “cost of quality” was a great idea in principle. If you could take the costs associated with defects, field failures, returns, and warranty claims, and add the costs of inspection, testing, scrap, and rework, then you could get everyone’s attention.

Quality would no longer be some abstract “nice to have” thing, but a real expense category that could be monitored and managed. With an objective, quantitative model to view how much money is actually being spent because of poor quality and associated practices, you would be able to evaluate proposed improvement programs and measure their performance. You would have something concrete to discuss with design and production teams to compare with estimates of future sales and operating expenses, apples to apples. All of this would lead to informed, balanced, and better decisions.

It sounds great, but it’s a lot harder than it sounds. You may be measuring yields and defects and returns, but now you’ve got to measure costs.

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Are You Looking For Root Cause, Or Someone to Blame? August 15, 2016

Posted by Tim Rodgers in Management & leadership, Operations, Process engineering, Quality.
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When I worked as a quality manager in my first career I was often required to investigate quality failures to determine the cause. There were times when it was pretty easy to figure out, but in an uncontrolled business environment it can be hard to identify a simple dependent relationship between cause and effect. There are usually multiple contributing factors. Sometimes a small thing (the cause) can become a big thing when it’s overlooked (another cause).

Most of the other managers I worked with didn’t have much patience with the complexities of root cause analysis. They wanted a simple, actionable outcome: this is the cause, and if we eliminate this cause then this problem will never happen again (right?), so let’s eliminate the cause. The people who were impacted by this quality failure want answers, and they want to feel confident that the business has taken decisive and effective action. They don’t want to endure an extended period of uncertainty and exposure to risk while the business figures out what to do in order to prevent re-occurrence.

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3D Printing and the Production Ramp August 8, 2016

Posted by Tim Rodgers in Process engineering, Product design, Quality, Supply chain.
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Yes, 3D printing is great. Incredibly intricate designs that have been virtually impossible to fabricate using traditional subtractive or injection molding technology can now be realized. The range of plastics and metallic materials that can be printed continues to grow. The falling prices for commercial printers makes them economically feasible for a variety of applications, including rapid prototyping and on-demand manufacturing of replacement parts for field repairs. The technology will continue to disrupt existing business models and help develop new ones, and I’m following all of this with great interest.

I’m especially interested to see how 3D printing will change traditional manufacturing, particularly for mass production. It’s one thing to build a single product that meets design and performance specifications, but it’s a different challenge to consistently make the quantities of products that are required to satisfy a larger market over an extended period of time at a cost that enables a profit. At some point I expect that established manufacturers will adopt 3D printing as a replacement for current fabrication technologies such as injection molding for some applications, however there are still significant cost and throughput advantages with the older processes.

Here are a couple of considerations:

  • Will the prototype design created using 3D printing still work with the volume production plan? Or, will it have to be re-designed to meet the manufacturer’s requirements and capabilities? A change in the fabrication method means re-visiting the discussion about design for manufacturability.
  • Are the materials used for the 3D printed prototype the same as those that will be used in the final product? What does that mean for functional and reliability testing of the prototype? Are those results still meaningful?

Again, it’s going to be interesting to see how this space develops.

Quality Decisions in Hindsight July 25, 2016

Posted by Tim Rodgers in Management & leadership, Operations, Organizational dynamics, Process engineering, Product design.
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For the last several years there’s been at least one high-profile case of quality failure that captures the attention of the business press for months at a time. Since late 2015 and early 2016 we’ve been watching to see if air-bag supplier Takata, iconic auto maker Volkswagen, and fast food chain Chipotle will survive their highly-publicized quality missteps. There’s always a lot of apologizing to the public, and a commitment to conduct internal investigations to identify and eliminate the causes of field failures. Senior management and boards of directors scramble to regain the trust of their customers.

I’m not at all surprised by the frequency of these events. What surprises me is that these events don’t happen more often. We should expect to continue to hear about similar catastrophic quality problems from otherwise reputable companies despite all the talk about six sigma and customer satisfaction, and despite all the investments in quality improvement programs. It’s the nature of business.

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How Much Quality Training Do You Need? July 18, 2016

Posted by Tim Rodgers in Management & leadership, Operations, Quality.
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OK, not everyone needs to be a Six Sigma Black Belt, but what elements of quality training should be provided to everyone in the organization?

When I worked at Hewlett-Packard in the early 1990s, senior leadership in our business unit attended a week-long series of six sigma classes at Xerox. When these HP folks returned they were provided with training materials and required to teach their direct reports about six sigma, and those direct reports were required to teach their direct reports, and so on all the way down the organization to people like me.

At the time, quality was not really part of my official responsibilities. I worked at a desk, creating product marketing programs for an internal supplier. The six sigma training was interesting to me, but I didn’t see the relevance to my daily work. What I remember most about those classes was how we were supposed to organize routine meetings, including assigning roles during the meeting and being clear about the objectives for the meeting. I don’t remember anything that seemed directly applicable to the quality of our output as a business unit, or the quality of the work artifacts that we produced as part of our daily responsibilities. It just didn’t seem relevant.

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What’s the Value of ISO 9001? January 25, 2016

Posted by Tim Rodgers in Quality, strategy.
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Earlier tonight I called in to listen to a presentation given at my local American Society of Quality (ASQ) chapter meeting about some of the changes in the ISO 9001 specification in the new 2015 version. I thought the speaker did a great job. He’s a consultant who makes his living helping companies become ISO 9001 certified and preparing for audits. He highlighted the differences in the new version of ISO 9001, and provided some useful tips about how to prepare for the updated requirements.

I don’t think he intended to do this, but he also made me question the purpose of ISO 9001 certification, and specifically whether it’s worth the time and money and effort.

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What Is the Quality Team Responsible For? (Part 2) January 11, 2016

Posted by Tim Rodgers in Process engineering, Quality.
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If “everyone is responsible for quality,” then what is the quality team responsible for? This isn’t a trick question. If a team or department (or person) doesn’t have a clear, distinct, and ideally-unique assigned responsibility, then should they continue to exist as a separate entity in the organization? Shouldn’t they be doing something else instead, as part of another team?

Of course many businesses don’t have a separate quality team or department at all, and others have chosen to eliminate the quality department as an independent function. That doesn’t necessarily mean that they don’t care about quality. Some of these businesses would probably argue that they have a greater commitment to quality because those principles and tools are fully integrated into all of their functions and processes. Why should all of the Six Sigma Green Belts and Black Belts be located in one central organization? Why not build local competencies within the functional groups, whether in new product development or marketing or finance?

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What Is the Quality Team Responsible For? (Part 1) January 2, 2016

Posted by Tim Rodgers in Process engineering, Quality.
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A few weeks ago I had coffee with a quality manager who’s now the president of our local chapter of the American Society of Quality. I’ve made a couple of presentations at the chapter meetings, and I’m helping to manage their web site, so I suppose it was only a matter of time before they asked me to take a leadership position. I declined. My short answer is that I’m “just too busy,” but of course that just means that I’m not willing to make time for it. To quote Bob Dylan: “I used to care, but things have changed.” More on that later.

The chapter president and I shared war stories about our experiences in quality management. His stories are a little more recent, but the underlying themes are the same, and I suspect quality managers one hundred years from now will be experiencing similar frustrations and telling similar stories. Everybody has stories, but I think the unique issues that quality managers face come down to a few fundamental questions:

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“Dare to Know” Reliability Engineering Podcasts January 12, 2015

Posted by Tim Rodgers in Process engineering, Product design, Quality.
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Over the last several months I’ve been working on a project with my friend and former colleague Fred Schenkelberg on a series of podcasts with thought leaders in the world of reliability engineering. Reliability and quality professionals have a tough job, but they’re not alone. There’s a large and growing community of experienced engineers, managers, authors, and other experts who are available to share their practical expertise and insights. Our Dare to Know interviews provide the opportunity to hear from these leaders and learn about the latest developments in analysis techniques, reliability standards, and business processes.

You can access the interviews at Fred’s Accendo Reliability web site: http://www.fmsreliability.com/accendo/dare-to-know/

Let me know what you think, or if you’re interested in joining us for a future interview.

Check Out “Document Center” December 11, 2014

Posted by Tim Rodgers in Quality, Supply chain.
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I don’t typically use this forum for recommendations, but here’s something I can support enthusiastically. My friends at Document Center manage and sell a comprehensive collection of industry and government standards from around the world. Customers who want to clearly express their requirements and quality expectations should be referencing standards in their communications with suppliers. Standards are developed through the cooperative efforts of experienced teams with deep understanding of their respective industries. While your specific product may have unique requirements, it’s important to use standards as a starting point rather than creating something from scratch. Your suppliers should already be familiar with them, and you should be as well.

If you’re looking for standards that are appropriate for your industry, or the most recent version of a standard that you’re currently using, go to Document Center. While you’re there, take a look at the guest blog that I contributed to the site last month at: Does Anyone In China Pay Attention to Standards?.

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