Thread Subject: Re: Summary of touch based controls from3/14transcript

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From: Thomas Albin
Date: Fri, May 11 2007 9:20 AM

Hi Rob,
I would like to suggest that we clarify the second bullet under
"Potential touch sensitive characteristics: Control must have a
mechanism to minimize accidental activation due to touch." After
some discussion, I would like to suggest that that be re-worded as
"Control must have a method to minimize accidental activiation due to
touch" in order to avoid any confusion that the intent is to require
a mechanical means, e.g. a spring or such, to minimize accidental
activation.

Best regards,
Tom Albin

On May 11, 2007, at 8:39 AM, < = EMAIL ADDRESS REMOVED = >
< = EMAIL ADDRESS REMOVED = > wrote:

> Additionally, this summary and the applicable section of the
> transcript have been posted to the WIKI.
>
>
>
> http://teitac.org/wiki/Touch_Controls
>
>
>
> From: = EMAIL ADDRESS REMOVED = [mailto:teitac-
> = EMAIL ADDRESS REMOVED = ] On Behalf Of = EMAIL ADDRESS REMOVED =
> Sent: Friday, May 11, 2007 8:38 AM
> To: = EMAIL ADDRESS REMOVED =
> Subject: [teitac-hardware] Summary of touch based controls from
> 3/14transcript
>
>
>
> This is an attempt to summarize key points from a transcript.
> Unfortunately, there are sections that were not very clear.
>
> Mechanical and touch sensitive controls need to be separated. In
> fact there may be 3 types of controls to consider:
>
> 1. Mechanical
>
> 2. Touch sensitive
>
> 3. Touch dependent (biometric)
>
> Mechanical controls may not be the best alternative to a touch
> sensitive control – language should be drafted to allow alternatives
>
> Touch screen versus touch sensitive:
>
> · touch screen more of a biometric technology
>
> · touch sensitive is still a “mechanically” driven solution
> but there is greater control of the sensitivity and timing
> characteristics. The example give was adaptive controls on a
> microwave
>
> Potential touch sensitive characteristics:
>
> · Control must be tactilely discernible
>
> · Control must have a mechanism to minimize accidental
> activation due to touch
>
> · Control characteristics, such as time to registration of
> signal, pressure, etc., should be adjustable
>
> Potential touch screen content:
>
> · An alternative method to achieve touch screen control
> functions must be provided via an alternative format or interact
> (for example voice control).
>
> Rob Nerhood | Experience Design Group | Ergonomics Engineer
> Dell, Inc. | One Dell Way | Round Rock, Texas 78682 - 7000
> direct 512.723.2763
>
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