RE: Question about SC 2.4.3 Focus Order

Thanks, Chuck. I like your sports ranking example. It highlights that backward navigation can have its own meaning. 

Reverse tab does lose the forward tab meaning (descending rank), but going in reverse has its own meaning (ascending rank). 

I think 2.4.3 is clear that advancing focus in one direction is required to preserve a meaning. I thing it would be helpful to clarify that going in reverse is not required to preserve the same meaning as going forward. 


-----Original Message-----
From: Chuck Adams <charles.adams@oracle.com> 
Sent: Friday, May 29, 2020 1:03 PM
To: Katherine Eng <eng@access-board.gov>; Bruce Bailey <Bailey@Access-Board.gov>; WCAG list (w3c-wai-gl@w3.org) <w3c-wai-gl@w3.org>
Cc: 508 <508@Access-Board.gov>
Subject: RE: Question about SC 2.4.3 Focus Order

Hi Katherine,

I think I have a use case which doesn't align with your statement:  "If forward "navigation sequences affect meaning", going backward would mean the meaning would be lost."  There may be other use cases which do, but I don't think your statement is always true.

The use case I'll site is our current NBA standings or NHL standings.  The listings of the teams are tab-able (though there are other issues on these pages), and sequence of the teams has meaning: their position in the standings.  As one tabs through the teams, their position in the sequence is their ranking in the standings.  Reverse tab doesn't lose meaning.  The user is still tabbing through their rankings, but the reverse tab ascends the standings rather than descends.

Regards,
Chuck the sports fan

-----Original Message-----
From: Katherine Eng <eng@access-board.gov> 
Sent: Friday, May 29, 2020 10:32 AM
To: Katherine Eng <eng@access-board.gov>; Bruce Bailey <Bailey@Access-Board.gov>; WCAG list (w3c-wai-gl@w3.org) <w3c-wai-gl@w3.org>
Cc: 508 <508@Access-Board.gov>
Subject: RE: Question about SC 2.4.3 Focus Order

The first line of my response was removed. It was

-1: no


-----Original Message-----
From: Katherine Eng <eng@access-board.gov> 
Sent: Friday, May 29, 2020 12:28 PM
To: Bruce Bailey <Bailey@Access-Board.gov>; WCAG list (w3c-wai-gl@w3.org) <w3c-wai-gl@w3.org>
Cc: 508 <508@Access-Board.gov>
Subject: RE: Question about SC 2.4.3 Focus Order

If forward "navigation sequences affect meaning", going backward would mean the meaning would be lost. I wouldn't expect a page with meaningful forward focus order to preserve the meaning when navigated backwards. 

If going forward and backward do not affect meaning, then 2.4.3 would not apply.

Thanks,

Kathy Eng

-----Original Message-----
From: Bruce Bailey <Bailey@Access-Board.gov> 
Sent: Friday, May 29, 2020 11:46 AM
To: WCAG list (w3c-wai-gl@w3.org) <w3c-wai-gl@w3.org>
Cc: 508 <508@Access-Board.gov>
Subject: Question about SC 2.4.3 Focus Order

Fellow AG'lers, I am asking that you indulge me in a quick straw poll:  Does SC 2.4.3 Focus Order include backwards navigation?

+1:  yes, of course
0:  not sure / maybe
-1:  no, of course not

FWIW, the associated Understanding Doc has a contradiction between the third paragraph of Intent and the first example provide.  I will be filling an issue (and, hopefully, following up with a pull request) about that, but really I first need a sense of the group consensus before that can happen.

Follows is 2.4.3 and the relevant affiliated definition.

Success Criterion 2.4.3 Focus Order (Level A):  If a Web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.

navigated sequentially:  navigated in the order defined for advancing focus (from one element to the next) using a keyboard interface

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Received on Friday, 29 May 2020 17:47:54 UTC