Your Reliability Engineering Professional Development Site
All articles listed in reverse chronological order.
The temperature of a process is an important measure to know as it indicates whether or not the process is in control.
The selection of the temperature sensing method depends on
The critical success factors for ISO 9001:2015 RBT are much like Six Sigma and lean. Our hard lessons learned over the last dozen years migrating organizations from quality to ERM include: [Read more…]
If a tree falls in a forest with no one around to hear it, does it still make a sound?
If a fault occurs in a combinational circuit but its masked at the outputs is it still a fault?
If you can’t excite a fault from the circuit inputs does it really exist?
If you can’t propagate a fault to an output pin, does it matter?
In assessing an integrated circuit’s testability engineers consider the concepts of controllability and observability. In these specific characteristics of testability came up often the academic test literature of the 1970’s and 1980’s. The challenge back then was automatic test generation and fault simulation. [Read more…]
So you’ve probably heard of elevator speeches before. You know, a speech that you could blurt out if you had 20 seconds on an elevator with someone. In theory, this should give someone an overview of what you do.
Let’s be real here, shall we? Most people don’t care about your elevator speech. When introduced via a typical elevator speech most people have already zoned out and are thinking about the best route to the snack table. Admit it – You do this too!! If you use those precious few seconds of introduction to rattle off a resume you’ve wasted an opportunity to make a memorable impression.
You know what else no one cares about?? Your job title. The majority of the time, job titles do not tell you that much information – especially if the person is working in a different industry. So sharing your title alone does not really do much to pique the interest of others. It is often the starting point, but do not get lazy and think this is the end of it.
Also, no one wants to hear a speech. People do NOT want to be talked TO. Booooooorrrrring! They want to talk WITH interesting folks. So let’s not think of it as a speech or a chance to lecture someone on what you do, ok? Ok!
Instead, shift your thinking to the goal of the elevator speech. When someone says you, “So, Tell me about yourself,” think of it as an opportunity to hook them. Make them curious. Make them ask more questions. The purpose of your elevator speech should be to entice the other person to want to get to know you. THIS, my friend, is how you make an impression. And THIS is why I like to call it a Ten Second Tease.
Model Building is a key theme for several advanced techniques. It boils down to creating an equation. Done well, one can predict and forecast how things will behave. Creating understanding reduces product risk and increases the chances for success.
Just 3 minutes and 9 second long, lets get the basics of model building to improve your understanding of how a system works. [Read more…]
I can remember attending my first Maintenance and Reliability Conference, while it was over twenty years ago I was excited to go and find out what other companies were doing to improve. I can remember looking at the agenda and feeling a bit overwhelmed, there were so many different presentations to choose from sometimes I had a difficult time selecting which one to attend at a given time slot. [Read more…]
In this question, a reader asks how to define system-level functions, and how they are different from subsystem and component functions.
“A prudent question is one-half of wisdom.”
Francis Bacon
This is the final post in the series on roles & responsibilities and is the final step in ensuring the team is working together. So far in the series we cover the importance of defining role & responsibilities. How to determine roles & responsibilities, and the major roles in the maintenance department. In the last post, we will cover how to tie it all together in a simple, easy to use document. A RACI. [Read more…]
One of the most difficult challenges of incorporating reliability activities with program planning is estimating the time it will take to demonstrate reliability. Demonstrated product reliability is typically measured as a confidence in a product’s capability to achieve a reliability goal. At product release, the business unit may feel comfortable with their target market and warranty goals with a demonstration of a 90% confidence in the products reliability goal of 99.1%. [Read more…]
The watch keeper of old guarded their people and possessions. They were found walking about looking, listening, and watching for changes that signaled danger. Their job was to look for hazards and quickly raise the alarm before all of them were invaded and killed or captured into slavery. With sufficient warning the home group could rally to the defence and counter-attack the enemy.
Times haven’t changed that much. Instead of being invaded by the enemy we now get consumed by plant and equipment problems. If only there was an effective way to spot problems coming our way and mount a counter-attack before being overrun. [Read more…]
Many CRO’s come from compliance, legal, or finance areas. They do not know operations or quality. This person is critical to quality‘s success with ISO 9001:2015 in terms of providing risk approvals, direction, and resources. The quality department should be flexible and work with the CRO, specifically: [Read more…]
There are two instances when you should implement preventative action. First, once a failure occurs and you would like to avoid similar future failures. Second, before a failure occurs, yet an undesired failure mechanism is likely to occur.
Like corrective action there is a wide range of possible preventative actions. The selection of the right actions requires considering customer expectations, business and legal factors, along with the technical and economic feasibility. [Read more…]
I have told my own children for years now that I didn’t find the job that I loved until I was around 35. Truth is I was around 35 when I figured out what I enjoyed but I didn’t really enjoy doing it until around 4 years later when I had the courage to leave the large company I had worked at for 19 years and start a business of my own. Working on my own I developed a product, had to market and sell that product to build a brand name. I had to make sure that every customer engagement was a shining example of success and efficiency because I not only wanted more business, I wanted my customers to tell everyone they knew that when it came to RCM (Reliability Centered Maintenance) I was not only the best bargain, I was one of the best in the world. [Read more…]
Not every request we make is fulfilled. Not every assignment is accomplished. Not every task we assign is completed.
Why is that? Possibly, the lack of a complete request.
It may be the person we made the request to was incapable or decided to ignore us. Or, more likely, it may be our request was not clear.
An unclear request increases the chance the desired outcome will not occur. An unclear request permits misunderstanding and confusion to guide the path toward an unsatisfactory result.
Understanding the essential elements of making a complete request improves the chance the desired outcome will occur.
Let’s examine the 7 elements one at a time. [Read more…]
Our white paper regarding t-test calculations has been very popular. Those that use the t-test tool regularly have commented “I finally understand what it is all about.”
The natural question they ask me next is “have you done anything with the F-test?” It is another common tool and one that is equally misunderstood.
Due to popular request, here is our attempt at explaining the F-test tool, in the two possible methods of use. [Read more…]