@fausto.galetto :) “Right” is spelled the way I typed….not the way in your cute survey.
Yea, I’m “poking the bear” but I think you broke some china in the shop beforehand. FYI, I’ll restate….doing a control chart on MTBF would seem to be a silly tool for practical use. If the valve is truly causing a plurality of downtime–break it do…[Read more]
MTBF with a control chart seems like a stretch to me–what kind of control plan would you have? I’d look at pareto of lost time and drill down to the component(s) and fix the issue(s) and see if the pareto of lost time showed a difference.
Chris Seider replied to the topic Using Computer Simulation Results for Design of Experiments in the forum Methodology 2 months ago
I can only imagine your approach COULD work IF…
1. The model was validated. No model is 100% so direction better be correct and an acceptable magnitude of error isn’t large relative to predictive changes in results. The model implies you apply the factors AS IS and get “close” to actual results. Don’t ask me online (LOL) what close is but…[Read more]
Chris Seider replied to the topic Questions About Sampling Procedures in Agriculture Production in the forum Tools & Templates 2 months, 1 week ago
Yes, the power of statistics is to use RANDOM sampling to get population mean estimates and see if you can shift those estimates after process changes. Yes, it could be the same for variation.
OEE is a great tool but not easy to “measure” if loss capturing isn’t credible.
I’ve helped many clients improve 10% output on poorly performing lines by finding either 1) easy to tackle significant loss buckets or 2) just providing instant feedback (even if just hourly) of how production is occurring so management and supervision has a chance to…[Read more]
Chris Seider replied to the topic Use of Control Charts for Monitoring KPIs with Target Percentages in the forum Tools & Templates 3 months, 3 weeks ago
Consider what you mean by target of 100%.
Your control chart would be great if no losses were assumed and the theoretical output was included–not planned output.
Planned shutdown times should ONLY include times where no one was employed to run the line. Routine maintenance and operator maintenance are still losses.
All calendar time should be included except for unscheduled run time for lack of orders or normal unscheduled time that isn’t manned.
Your scenario would have 24 hours in the…[Read more]
Chris Seider replied to the topic Looking for Ideas for How to Improve Turnaround Time in the Electrophysiology Lab in the forum Healthcare 3 months, 3 weeks ago
do you have a problem statement and a metric chart(s) that the project champion agrees are measures of success?
Have you been to any tournament lately for kids? :) All clear up here for this bud in Dallas but let’s hope recovery goes well for those souls impacted. I shop SOMETIMES at the Home Depot that got destroyed at Forest Ave in Dallas. That store manager that got everyone out and closed the store deserves a med…[Read more]
Chris Seider replied to the topic What Are Average Black Belt Certification Rates? What to Do to Improve Them? in the forum Training 4 months ago
I hope certification includes project completions. If that’s the highest pareto of reason, look at the potential causes for project delay/deaths.
Chris Seider replied to the topic Why Shouldn't We Include Spec Limits in Control Charts? in the forum Tools & Templates 5 months, 2 weeks ago
@email@example.com Did you really state you’d tell the customer you wouldn’t help them out and give them a stupid phrase of “but my process is in control”. Have you considered that something downstream of your process is impacting the product OR that variation appeared outside of your typical subgrouping that you’ve designed your control ch…[Read more]
Chris Seider replied to the topic Green Belt Certification Question: Order of Analyze Steps in the forum Training 5 months, 2 weeks ago
oh my….what a silly exam question.
Please know that there are a lot more analysis tools available and for them to mention “weaker” ones like Fishbone and 5-why (which are actually VERY related) is a shame.
Chris Seider replied to the topic 2^2 Factorial Design with Center Points – Curvature Detected in the forum Methodology 5 months, 2 weeks ago
Did you have enough gap between your levels for A and B? This (too small of change in X’s) can cause small enough difference in your Y such that you can’t get statistical confidence.
a remote area…. was this necessary on the pareto of areas to tackle?
IF it’s used sometimes…as hinted by your post–consider the economics and effort for removal and reinstalling.
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