FMEA Detection Rating - What is Soft or Hard?

I

Invicta

#1
I am very new to this methodology and am confused by these two terms.
Am I correct in thinking that
Soft = Interpretation error
Hard = Error caused which is quantifiable e.g. Not to tollerance

Any help would be very much appreciated.

Kind regards
Bernard
 
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Jim Wynne

Staff member
Admin
#2
Re: Detection Soft or Hard

I am very new to this methodology and am confused by these two terms.
Am I correct in thinking that
Soft = Interpretation error
Hard = Error caused which is quantifiable e.g. Not to tollerance

Any help would be very much appreciated.

Kind regards
Bernard
You've posted this under FMEA and Control Plans, and I've been dealing with both for a long time and have never heard the terms used. Can you tell us what methodology you're referring to, and the context (where the terms are used)?
 
I

Invicta

#3
Jim,

I've been sent a form with the following scores to be used under "Detection"

Almost None: 5
Sample Soft: 4
Sample Hard: 3
100% Soft: 2
100% Hard: 1

It is in an Excel file format which I would be happy to send (but I can't work out how to post here).

Bernard
 

Jim Wynne

Staff member
Admin
#4
Jim,

I've been sent a form with the following scores to be used under "Detection"

Almost None: 5
Sample Soft: 4
Sample Hard: 3
100% Soft: 2
100% Hard: 1

It is in an Excel file format which I would be happy to send (but I can't work out how to post here).

Bernard
It's certainly not any form of standard terminology. You need to ask the customer (or whomever it was that sent you the form) what it all means.
 

Paul Simpson

Trusted Information Resource
#5
Jim,

I've been sent a form with the following scores to be used under "Detection"

Almost None: 5
Sample Soft: 4
Sample Hard: 3
100% Soft: 2
100% Hard: 1

It is in an Excel file format which I would be happy to send (but I can't work out how to post here).

Bernard
I agree with Jim. It's not a format I recognize. I would ask the customer.
 
D

Duke Okes

#6
Oh ye of little drive to Google. Although it doesn't provide any explanation, here's the link to the form: www.fmeainfocentre.com/examples/iptincfmea.xls

Here's the company that uses is: http://www.keihin.com/about.htm

P.S. I would guess that Sample vs. 100% is the frequency of the inspection/test/evaluation meant to find the problem, and Soft vs. Hard is whether it's highly dependent on people (e.g., visual interpretation) vs. being a mechanical type of test with greater reliability.
 
Last edited by a moderator:

Jim Wynne

Staff member
Admin
#7
Oh ye of little drive to Google. Although it doesn't provide any explanation, here's the link to the form: www.fmeainfocentre.com/examples/iptincfmea.xls

P.S. I would guess that Sample vs. 100% is the frequency of the inspection/test/evaluation meant to find the problem, and Soft vs. Hard is whether it's highly dependent on people (e.g., visual interpretation) vs. being a mechanical type of test with greater reliability.
Thanks for the link; that's probably the worst mess of a FMEA form I've ever seen. Also note that in the example, in the very first entry (Receive Material) the potential cause of the failure mode is the failure mode, reworded. And "Wrong type of material" isn't a failure of the material receiving process. :bonk:
 
I

Invicta

#8
Duke, Jim,

Thank you both for your help in this.

I've been in touch with the section of the business that sent this to me.
Yes you are correct. They used the web site example "Goggling".

As this is all very new to me is there a better example I could look at?

Kind regards
Bernard
 
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