Accendo Reliability

Your Reliability Engineering Professional Development Site

  • Home
  • About
    • Contributors
  • Reliability.fm
    • Speaking Of Reliability
    • Rooted in Reliability: The Plant Performance Podcast
    • Quality during Design
    • Critical Talks
    • Dare to Know
    • Maintenance Disrupted
    • Metal Conversations
    • The Leadership Connection
    • Practical Reliability Podcast
    • Reliability Matters
    • Reliability it Matters
    • Maintenance Mavericks Podcast
    • Women in Maintenance
    • Accendo Reliability Webinar Series
    • Asset Reliability @ Work
  • Articles
    • CRE Preparation Notes
    • on Leadership & Career
      • Advanced Engineering Culture
      • Engineering Leadership
      • Managing in the 2000s
      • Product Development and Process Improvement
    • on Maintenance Reliability
      • Aasan Asset Management
      • CMMS and Reliability
      • Conscious Asset
      • EAM & CMMS
      • Everyday RCM
      • History of Maintenance Management
      • Life Cycle Asset Management
      • Maintenance and Reliability
      • Maintenance Management
      • Plant Maintenance
      • Process Plant Reliability Engineering
      • ReliabilityXperience
      • RCM Blitz®
      • Rob’s Reliability Project
      • The Intelligent Transformer Blog
    • on Product Reliability
      • Accelerated Reliability
      • Achieving the Benefits of Reliability
      • Apex Ridge
      • Metals Engineering and Product Reliability
      • Musings on Reliability and Maintenance Topics
      • Product Validation
      • Reliability Engineering Insights
      • Reliability in Emerging Technology
    • on Risk & Safety
      • CERM® Risk Insights
      • Equipment Risk and Reliability in Downhole Applications
      • Operational Risk Process Safety
    • on Systems Thinking
      • Communicating with FINESSE
      • The RCA
    • on Tools & Techniques
      • Big Data & Analytics
      • Experimental Design for NPD
      • Innovative Thinking in Reliability and Durability
      • Inside and Beyond HALT
      • Inside FMEA
      • Integral Concepts
      • Learning from Failures
      • Progress in Field Reliability?
      • Reliability Engineering Using Python
      • Reliability Reflections
      • Testing 1 2 3
      • The Manufacturing Academy
  • eBooks
    • Reliability Engineering Management DRAFT
  • Resources
    • Accendo Authors
    • FMEA Resources
    • Feed Forward Publications
    • Openings
    • Books
    • Webinars
    • Journals
    • Higher Education
    • Podcasts
  • Courses
    • 14 Ways to Acquire Reliability Engineering Knowledge
    • Reliability Analysis Methods online course
    • Measurement System Assessment
    • SPC-Process Capability Course
    • Design of Experiments
    • Foundations of RCM online course
    • Quality during Design Journey
    • Reliability Engineering Statistics
    • An Introduction to Reliability Engineering
    • An Introduction to Quality Engineering
    • Process Capability Analysis course
    • Root Cause Analysis and the 8D Corrective Action Process course
    • Return on Investment online course
    • CRE Preparation Online Course
    • Quondam Courses
  • Webinars
    • Upcoming Live Events
  • Calendar
    • Call for Papers Listing
    • Upcoming Webinars
    • Webinar Calendar
  • Login
    • Member Home

on Tools & Techniques

A listing in reverse chronological order of articles by:
  • Dennis Craggs — Big Data Analytics series
  • Perry Parendo — Experimental Design for NPD series
  • Dev Raheja — Innovative Thinking in Reliability and Durability series
  • Oleg Ivanov — Inside and Beyond HALT series
  • Carl Carlson — Inside FMEA series
  • Steven Wachs — Integral Concepts series
  • Shane Turcott — Learning from Failures series
  • Larry George — Progress in Field Reliability? series
  • Matthew Reid — Reliability Engineering Using Python series
  • Kevin Stewart — Reliability Relfections series
  • Anne Meixner — Testing 1 2 3 series
  • Ray Harkins — The Manufacturing Academy series

by Carl Carlson Leave a Comment

FMEA Detection Risk: Insights and Advices

I am often asked about the application of detection in FMEAs. When and how to assess for the risk of detection can be confusing. Here are some pointers for when and how to use detection in an FMEA.

[Read more…]

Filed Under: Articles, Inside FMEA Tagged With: FMEA Detection

by Ray Harkins Leave a Comment

What is Six Sigma and How is it Used in Quality Engineering?

What is Six Sigma and How is it Used in Quality Engineering?

Another of the most commonly asked questions about quality engineering is “What is Six Sigma and how is it used in quality engineering?”

Six Sigma is a data-driven approach to continuous improvement that aims to reduce defects and variability in products, processes, and systems. It is based on the idea that by identifying and addressing the root causes of defects and variability, organizations can significantly improve the quality of their products and processes. Six Sigma is used to identify and eliminate defects and variability by collecting and analyzing data, identifying patterns and trends, and implementing process improvements.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Larry George Leave a Comment

Why Isn’t It Working Like You Said?

Why Isn’t It Working Like You Said?

Nonparametric, age-specific field reliability estimates helped deal with a Customer’s bad experience using a Hewlett-Packard part in the Customer’s product: 110 part failures out of 3001 shipped in the first five months. Comparison of HP population vs. Customer reliability estimates showed the Customer’s infant mortality was not typical. Using population ships and failures or returns data eliminated sample uncertainty from the HP population field reliability estimate.

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

What Reliability Engineers Can Learn from Quality

What Reliability Engineers Can Learn from Quality

a.k.a. “the dark side”

Reliability engineering and quality engineering are closely related disciplines that both focus on ensuring that products, processes, and systems are efficient, effective, and meet the required standards. As such, there are several ways in which reliability engineers can improve their skills by learning about quality engineering.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Ray Harkins Leave a Comment

Understanding First Article Inspection

Understanding First Article Inspection

For the seasoned manufacturing quality professional, First Article Inspection (FAI) is a familiar process performed after the first production run of a new or redesigned part. But for those outside of or newer to the quality profession, the requirements of FAI may provoke a lot of questions and uncertainty.

In short, FAI is the process of planning, conducting and reporting the verification of a production process. This verification “closes the loop” between the customer’s expectations — usually described on the part’s engineering drawing — and the actual output of the supplier’s process.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Carl Carlson Leave a Comment

The Future of Reliability Engineering

As we celebrate the new year, I am republishing an article I wrote last year, titled “The Future of Reliability Engineering,” as part of the Inside FMEA series. This article applies equally well to FMEA, as you will see.

Sometime in 2023, I will write an article titled “The Future of FMEA.” But, first, I want to hear from readers. Please write me with your ideas on what should be included in the future of FMEA. You can reach me at Carl.Carlson@EffectiveFMEAs.com

Wishing everyone on Accendo Reliability a happy and healthy new year, and best wishes for high reliability and effective FMEAs!

The Future of Reliability Engineering

by Carl S. Carlson

“Destiny is no matter of chance. It is a matter of choice. It is not a thing to be waited for, it is a thing to be achieved.” – William Jennings Bryan

[Read more…]

Filed Under: Articles, Inside FMEA Tagged With: Future of Reliability

by Larry George 1 Comment

Sample vs. Population Estimates?

Sample vs. Population Estimates?

Rupert Miller said, “Surprisingly, no efficiency comparison of the sample distribution function with the mles (maximum likelihood estimators) appears to have been reported in the literature.” (Statistical “efficiency” measures how close an estimator’s sample variance is to its Cramer-Rao lower bound.) In “What Price Kaplan-Meier?” Miller compares the nonparametric Kaplan-Meier reliability estimator with mles for exponential, Weibull, and gamma distributions.

This report compares the bias, efficiency, and robustness of the Kaplan-Meier reliability estimator from grouped failure counts (grouped life data) with the nonparametric maximum likelihood reliability estimator from ships (periodic sales, installed base, cohorts, etc.) and returns (periodic complaints, failures, repairs, replacement, spares sales, etc.) counts, estimator vs. estimator and population vs. sample.

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

Understanding Job Satisfaction with Maslow’s Hierarchy of Needs

Understanding Job Satisfaction with Maslow’s Hierarchy of Needs

In a season 2 episode of AMC’s acclaimed TV show “Better Call Saul”, its lead character Jimmy McGill asks his assistant Omar to “take a letter” as he dictates a handful of disjointed phrases to tender his resignation from his lucrative position at the Davis & Main law firm1. During a pause between Jimmy’s thoughts, Omar blankly states, “I just didn’t realize how unhappy you were here.” Jimmy’s response, while puzzling and a bit comical, describes a concept key to understanding the nature of job satisfaction. He replies to Omar, “Not unhappy, per se. More like not happy.”

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Larry George 1 Comment

Uncertainty in Population Estimates?

Uncertainty in Population Estimates?

Dick Mensing said, “Larry, you can’t give an estimate without some measure of its uncertainty!” For seismic risk analysis of nuclear power plants, we had plenty of multivariate earthquake stress data but paltry strength-at-failure data on safety-system components. So we surveyed “experts” for their opinions on strengths-at-failures distribution parameters and for the correlations between pairs of components’ strengths at failures. 

If you make estimates from population field reliability data, do the estimates have uncertainty? If all the data were population lifetimes or ages-at-failures, estimates would have no sample uncertainty, perhaps measurement error. Estimates from population field reliability data have uncertainty because typically some population members haven’t failed. If field reliability data are from renewal or replacement processes, some replacements haven’t failed and earlier renewal or replacement counts may be unknown. Regardless, estimates from population data are better than estimates from a sample, even if the population data is ships and returns counts!

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

The Window and the Mirror; A Framework for Building Credibility

The vast majority of professionals will never rise to the heights of leading a major corporation. But because of the public nature of executives and the companies they oversee, business leaders and their management methods often form effective case studies for those who manage smaller projects and organizations.

Over time, professionals who make a habit of reading trade journals and analyzing business reports can begin spotting both the useful and the futile patterns among these executives’ leadership styles. One such pattern, coined by the bestselling author of “Good to Great” Jim Collins, is called “The Window and the Mirror”.1

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Carl Carlson 5 Comments

Reviewing AIAG / VDA FMEA Handbook

Reviewing AIAG / VDA FMEA Handbook

I am often asked for my opinion about the FMEA Handbook that was jointly published by AIAG and VDA in 2019. Here is a summary of my candid views on this handbook, excerpted from a presentation I gave at the 2019 Guangbin Yang Reliability Symposium.

[Read more…]

Filed Under: Articles, Inside FMEA Tagged With: FMEA Standard

by Larry George 1 Comment

Progress in LED Reliability Analysis?

Progress in LED Reliability Analysis?

ANSI-IES TM-21 standard method may predict negative L70 LED lives. (L70 is the age at which LED lumens output has deteriorated to less than 70% of initial lumens.) Philips-Lumileds deserves credit for publishing the data that inspired an alternative L70 reliability estimation method based on geometric Brownian motion of stock prices in the Black-Scholes-Merton options price model. This gives the inverse Gauss distribution of L70 for LEDs. 

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

To Change is to Change Twice

To Change is to Change Twice

As a teenager in the 1980s, I was an avid reader of Omni, a now defunct magazine dedicated to the future—a far-off world filled with super humans, artificial biospheres and frequent encounters with extraterrestrial beings. Omni catered to armchair futurists like me with science and science fiction stories by A-level writers like Bernard Dixon and William Burroughs.

Future-oriented mass media such as Omni and “Star Wars” gives its consumers a plausible vision of everyday life for future generations. What these sources don’t typically deliver, though, is the path of change to get there. 

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Ray Harkins Leave a Comment

The Cost of Opportunity

The Cost of Opportunity

Everyone working in a decision-making role has at least an intuitive understanding of the concept of opportunity costs-the value of the thing you didn’t choose. Simply stated, when you say ‘Yes’ to one thing, you simultaneously say ‘No’ to everything else you could have chosen instead. And those things to which you say ‘No’ have a value that you’re relinquishing. When I was a teenager, I heard an older gentleman quip, “When I said ‘I do’ to my wife, I was also saying ‘I don’t’ to all the other girls out there”. That man understood opportunity cost.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Carl Carlson Leave a Comment

Evaluating Facilitator Skills

How to Evaluate the Skills of a Facilitator?

Leading is about learning to be a facilitator – Ashif Shaikh

Ask yourself, when teams work very well together, what are the positive characteristics of the team leader? When teams are dysfunctional, and have poor outcomes, what skills of the leader need to be improved?

Let’s talk about facilitators

Giving proper feedback is a great way to help a colleague improve FMEA facilitation skills. Carefully listening to feedback from a colleague is an important way to improve one’s own FMEA facilitation skills. Both are aided by understanding and using facilitation quality objectives. [Read more…]

Filed Under: Articles, Inside FMEA Tagged With: FMEA Facilitation

Next Page »

Join Accendo

Receive information and updates about articles and many other resources offered by Accendo Reliability by becoming a member.

It’s free and only takes a minute.

Join Today

Recent Articles

  • History Repeats Itself: Buncefield, Puerto Rico, Jaipur
  • How Reliability Engineers Can Improve Their Communication in Information Sessions
  • FMEA Detection Risk: Insights and Advices
  • How to Structure Your ERM System
  • Rate of Occurrence of Failure

© 2023 FMS Reliability · Privacy Policy · Terms of Service · Cookies Policy

This site uses cookies to give you a better experience, analyze site traffic, and gain insight to products or offers that may interest you. By continuing, you consent to the use of cookies. Learn how we use cookies, how they work, and how to set your browser preferences by reading our Cookies Policy.