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RE: AW: Discussion 5.5

From: Velleman, Eric <evelleman@bartimeus.nl>
Date: Thu, 19 Jan 2012 21:44:18 +0000
To: Detlev Fischer <fischer@dias.de>, Kerstin Probiesch<k.probiesch@googlemail.com>
CC: "public-wai-evaltf@w3.org" <public-wai-evaltf@w3.org>
Message-ID: <3D063CE533923349B1B52F26312B0A4675660D@s107ma.bart.local>
Hi Kerstin, Detlev,

This is also an interesting margin of error. 
The evaluator making mistakes. 
This is an interesting thing to look at when we talk about replicability. This would indicate that there is a margin of error from the evaluators that influences replicability depending on the size of the sample. Wiki indicates that it decreases with a larger sample.

Do we accept errors by evaluators?
Kindest regards,

Eric

________________________________________
Van: Detlev Fischer [fischer@dias.de]
Verzonden: donderdag 19 januari 2012 22:29
Aan: Kerstin Probiesch
CC: public-wai-evaltf@w3.org
Onderwerp: Re: AW: Discussion 5.5

Hi Kerstin,

Whoops, I may have been on the wrong track. I guess what you refer to
describes uncertainty in *attestation*: evaluator's errors, omissions,
or misjudgements, not error = the pin-downable flaws that we find in
evaluating web sites. So maybe 'error' is best used exclusively as a
term to describe variance in the evaluation process? But then, wasn't
the term "margin of error" used in the context of marginal flaws that
might be acknowledged without preventing the attestation of
conformance? Not sure anymore, it's too late - must go back to the
discussion...

Regards,
Detlev



it just describes  Quoting Kerstin Probiesch <k.probiesch@googlemail.com>:

> Hi Detlev,
>
> "error margin" or "margin of error" is a term used in Test Development. Some
> hints here:
> http://www.linguee.com/english-german?query=margin+of+error&source=english.
> Some further explanations here:
> http://en.wikipedia.org/wiki/Margin_of_error.
>
> Regs
>
> Kerstin
>
>> -----Ursprüngliche Nachricht-----
>> Von: Detlev Fischer [mailto:fischer@dias.de]
>> Gesendet: Donnerstag, 19. Januar 2012 21:16
>> An: public-wai-evaltf@w3.org
>> Betreff: RE: Discussion 5.5
>>
>> Hi Tim,
>>
>> English isn't my first language, but doesn't 'error' indicate that
>> someone basically knew how to do something and erred (not always the
>> case with the problems we encounter)? Maybe 'flaw' is the more
>> accurate term? 'Failure instance' sounds pretty stilted and may easily
>> get mixed up with (WCAG) Failures.
>>
>> Mhm..(scratching head)...mhm.
>>
>> Quoting "Boland Jr, Frederick E." <frederick.boland@nist.gov>:
>>
>> > According to some references I recently accessed, criticality
>> > implies that the evaluation cannot continue until the problem has
>> > been resolved, whereas non-criticality implies that the evaluation
>> > may proceed with the problem noted.
>> >
>> > A definition of "error" (from
>> > http://dictionary.reference.com/browse/error?s=t
>> > ) "a deviation from accuracy or correctness"
>> > -which would seem to apply to "barrier" as well?
>> >
>> > A definition of "barrier" (from
>> > http://dictionary.reference.com/browse/barrier?s=t
>> > ) "anything built or serving to bar passage"
>> > -which would seem to imply criticality as mentioned previously
>> >
>> >
>> > -----
>> >
>> > In many cases, distinguishing between critical and non-critical is
>> easy.
>> > A keyboard trap or a lightbox dialogue that pops up without screen
>> > reader users becoming aware of it is a critical violation. A
>> graphical
>> > navigation element without alt text is one as well. But a few missing
>> > paragraphs or list tags in editorial content are probably non-
>> critical.
>> > However, there will be a grey area where the distinction is not so
>> easy.
>> > But that, in my view, should not lead to the conclusion that the
>> > distinction cannot or must not be made.
>> >
>> > Not sure about terms, though. Is 'error' a good term for non-critical
>> > violations and 'barrier' a good term for critical violations?
>> >
>> > Detlev
>> >>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> >
>> >
>>
>>
>>
>> --
>> ---------------------------------------------------------------
>> Detlev Fischer PhD
>> DIAS GmbH - Daten, Informationssysteme und Analysen im Sozialen
>> Geschäftsführung: Thomas Lilienthal, Michael Zapp
>>
>> Telefon: +49-40-43 18 75-25
>> Mobile: +49-157 7-170 73 84
>> Fax: +49-40-43 18 75-19
>> E-Mail: fischer@dias.de
>>
>> Anschrift: Schulterblatt 36, D-20357 Hamburg
>> Amtsgericht Hamburg HRB 58 167
>> Geschäftsführer: Thomas Lilienthal, Michael Zapp
>> ---------------------------------------------------------------
>
>



--
---------------------------------------------------------------
Detlev Fischer PhD
DIAS GmbH - Daten, Informationssysteme und Analysen im Sozialen
Geschäftsführung: Thomas Lilienthal, Michael Zapp

Telefon: +49-40-43 18 75-25
Mobile: +49-157 7-170 73 84
Fax: +49-40-43 18 75-19
E-Mail: fischer@dias.de

Anschrift: Schulterblatt 36, D-20357 Hamburg
Amtsgericht Hamburg HRB 58 167
Geschäftsführer: Thomas Lilienthal, Michael Zapp
---------------------------------------------------------------



Received on Thursday, 19 January 2012 21:47:39 GMT

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