Thread Subject: Re: 1194.21 h to ISO-9241-171

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From: luke.kowalski@oracle.com
Date: Wed, Nov 08 2006 9:50 AM

Sounds reasonable and prudent to me...thanks

-----Original Message-----
From: "Gregg Vanderheiden" < = EMAIL ADDRESS REMOVED = >
To: = EMAIL ADDRESS REMOVED = ; "'TEITAC Web/Software Subcommittee'" < = EMAIL ADDRESS REMOVED = >
Sent: 11/7/06 7:54 PM
Subject: RE: [teitac-websoftware] 1194.21 h to ISO-9241-171

Background

The three second "exception" was added because

1) it is useful to sometimes highlight something for the user. (good for
cognitive disabilities too).
2) if it stops relatively quickly - it doesn't block use of page - only
delays it briefly
3) it avoids having to require authors to include a user interface element
to stop it if it just attracts attention then quits.
4) 3 seconds was a consensus of 'long enough to notice' but 'short enough
to not delay access unnecessarily.

Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.



> -----Original Message-----
> From: = EMAIL ADDRESS REMOVED =
> [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf
> Of Luke Kowalski
> Sent: Tuesday, November 07, 2006 7:18 PM
> To: TEITAC Web/Software Subcommittee
> Subject: [teitac-websoftware] 1194.21 h to ISO-9241-171
>
> (g went out in an out of sequence message)
>
> Here is 1194.22 h, as in Henry, mapping 1194.21 to iso 9241-171
>
> Summary: I am not sure how folks feel about the 3 second rule
> in the iso standards, but the essense is the same in both
> (provide alternatives to animated version)
>
> (h) When animation is displayed, the information shall be
> displayable in at least one non-animated presentation mode at
> the option of the user
>
> 10.8.1 Provide non-animated alternatives to animations When
> animation is displayed that will last for more than three
> seconds, and the user is expected to carry out other
> activities at the same time, software shall give the user the
> option to choose an alternative non-animated version of the
> same content. If the animation is not task relevant then a
> version where the non-task-relevant item is missing would conform.
>
> luke kowalski, CPE
> Corporate UI Architect
> http://ui.oracle.com <http://ui.oracle.com/> Redwood Shores,
> CA 94065 650 506 1227

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