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RE: [breadcrumbs] best practice

From: Bryan Garaventa <bryan.garaventa@levelaccess.com>
Date: Thu, 23 Nov 2017 00:46:01 +0000
To: Michiel Bijl <michiel.list@moiety.me>, Phill Jenkins <pjenkins@us.ibm.com>
CC: Matt King <a11ythinker@gmail.com>, "Fathauer, Laura" <fathauer@ohio.edu>, Harry Loots <harry.loots@ieee.org>, "Patrick H. Lauke" <redux@splintered.co.uk>, W3C WAI ig <w3c-wai-ig@w3.org>
Message-ID: <MWHPR03MB3198D712693CEBA91F5C3737F2210@MWHPR03MB3198.namprd03.prod.outlook.com>
For the APG we should make certain that aria-current is included within this design pattern, especially since this was one of the primary use cases that we used to justify adding this attribute to the spec in the first place.

Bryan Garaventa
Accessibility Fellow
Level Access, Inc.
415.624.2709 (o)

From: Michiel Bijl [mailto:michiel.list@moiety.me]
Sent: Tuesday, November 21, 2017 12:08 AM
To: Phill Jenkins <pjenkins@us.ibm.com>
Cc: Matt King <a11ythinker@gmail.com>; Fathauer, Laura <fathauer@ohio.edu>; Harry Loots <harry.loots@ieee.org>; Patrick H. Lauke <redux@splintered.co.uk>; W3C WAI ig <w3c-wai-ig@w3.org>
Subject: Re: [breadcrumbs] best practice


While this doesn’t directly refute your findings, WebAIM’s 2014 screenreader survey[1] has a section on breadcrumbs where users were asked about their preferred markup for breadcrumbs. This at least shows users are fairly familiar with the pattern. The high number of people that didn’t have a preference is telling though (as noted in the survey).

FWIW: the APG notes that the linked current page is optional. Meaning you can have it as plain text. In that case aria-current is optional.

It would certainly be a good thing to do new user research on this. Do you have any tips on how to go about this?

1. https://webaim.org/projects/screenreadersurvey5/#breadcrumb

— Michiel

On 20 Nov 2017, at 20:22, Phill Jenkins <pjenkins@us.ibm.com<mailto:pjenkins@us.ibm.com>> wrote:
some of us are not questioning the creation of the aria-current attribute, as specified at https://www.w3.org/TR/wai-aria-1.1/#aria-current

but I believe the question is if there is enough data (current) that refutes or confirms earlier studies that showed confusion when making the "current page" an active link in a "bread-crumb" trail.
I believe there are clearly other use cases that justify the need and utility of thearia-current attribute, but I'm questioning the use with bread-crumb specifically.

. . .  The aria-current attribute is used when an element within a set of related elements is visually styled to indicate it is the current item in the set. For example:

  *   A page token used to indicate a link within a set of pagination links, where the link is visually styled to represent the currently-displayed page.
  *   A step token used to indicate a link within a step indicator for a step-based process, where the link is visually styled to represent the current step.
  *   A location token used to indicate the image that is visually highlighted as the current component of a flow chart.
  *   A date token used to indicate the current date within a calendar.
  *   A time token used to indicate the current time within a timetable.

Authors SHOULD only mark one element in a set of elements as current with aria-current.

Authors SHOULD NOT use . . .

There isn't a "bread-crumb" attribute or widget, correct? Other than using a nav-element with an aria-label of “breadcrumb”.
So the author would have to give a clue that the set of link elements are quote bread-crumbs unquote via the aria-label or title attribute, otherwise the burden of learning the pattern will rely on the user to be able to recognize that it is in fact a "bread-crumb" navigation set of hierarchal links.  I believe there is also a "burden" or "responsibility" on the user agent / assistive technology (if any).  So, even if this all "works" and is "specified", I would recommend some "end-user testing/studies" to develop and document the best practice.  We need something that refutes or confirms earlier studies
Phill Jenkins
Senior Engineer & Accessibility Executive
IBM Research Accessibility

From:        Michiel Bijl <michiel.list@moiety.me<mailto:michiel.list@moiety.me>>
To:        Harry Loots <harry.loots@ieee.org<mailto:harry.loots@ieee.org>>
Cc:        "Fathauer, Laura" <fathauer@ohio.edu<mailto:fathauer@ohio.edu>>, Phill Jenkins <pjenkins@us.ibm.com<mailto:pjenkins@us.ibm.com>>, Matt King <a11ythinker@gmail.com<mailto:a11ythinker@gmail.com>>, W3C WAI ig <w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>>, "Patrick H. Lauke" <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>
Date:        11/20/2017 10:34 AM
Subject:        Re: [breadcrumbs] best practice

ARIA 1.1 introduced aria-current: https://www.w3.org/TR/wai-aria-1.1/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.w3.org_TR_wai-2Daria-2D1.1_&d=DwMFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=aWgRqmoh0Xuzjf7UaXq44Tf6K41u809DPE44ioVTOvk&m=ub-ddeC6nrau1KGgW2ij-KfJ07OloXIcCcuSl12kihU&s=l2BtBiQ2R-TdE0FG6XHARvPVokjqHDddZdV1hcfIM2g&e=>

Its use is demonstrated in the APG pattern Matt linked to.

— Michiel

On 20 Nov 2017, at 17:08, Harry Loots <harry.loots@ieee.org<mailto:harry.loots@ieee.org>> wrote:

The issue is not about whether users have gained the ability to recognise breadcrumb navigation, but about providing a link that does nothing (i.e., creating a redundancy).

And, what's more important is whether this causes a nuisance to AT users? Will it mean they have to listen to the name of the page twice - once from the breadcrumb, and another time from the heading?

How will users tabbing through the page hear "current page"?

Many thanks

On 20 November 2017 at 15:45, Fathauer, Laura <fathauer@ohio.edu<mailto:fathauer@ohio.edu>> wrote:
My rationale is that users tabbing through the page will be able to land on that link and hear “current page” and therefore be able to know that the breadcrumb hierarchy of links ends with that link and where that page sits.

If your usability tests were around 15  years ago, I would posit that in general people may have advanced in with their ability to recognize breadcrumb navigation.


From: harry.loots@googlemail.com<mailto:harry.loots@googlemail.com>[mailto:harry.loots@googlemail.com<mailto:harry.loots@googlemail.com>] On Behalf Of Harry Loots
Sent: Monday, November 20, 2017 2:36 AM
To: Phill Jenkins <pjenkins@us.ibm.com<mailto:pjenkins@us.ibm.com>>
Cc: Matt King <a11ythinker@gmail.com<mailto:a11ythinker@gmail.com>>; W3C WAI ig <w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>>; Patrick H. Lauke <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>

Subject: Re: [breadcrumbs] best practice

In my experience making the current active page a linked item in the breadcrumbs lead to potential confusion for all users. I observed users (in usability tests), clicking on this link - expecting to go to a previous page - and then ending on the same page (probably around early 2000s), and have ever since avoided 1) placing the current page name as a member of the breadcrumb, and 2) would most definitely not make it an active link.

Thanks all for the comments - it appears as if we could do with some research in this area...

Kindest regards

On 18 November 2017 at 01:36, Phill Jenkins <pjenkins@us.ibm.com<mailto:pjenkins@us.ibm.com>> wrote:
Why is it a best practice to make the current page an active link to the same page - isn't an active visible link distracting or at least confusing to users with cognitive disabilities?
       snip of code from pattern:
       . . .
       <a href="./index.html"aria-current="page">
         Breadcrumb Example
Phill Jenkins

From:        Matt King <a11ythinker@gmail.com<mailto:a11ythinker@gmail.com>>
To:        "'Patrick H. Lauke'" <redux@splintered.co.uk<mailto:redux@splintered.co.uk>>, <w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>>
Date:        11/17/2017 03:38 PM
Subject:        RE: [breadcrumbs] best practice

BTW, we have a breadcrumb pattern in the ARIA Authoring Practicess:

Matt King

-----Original Message-----
From: Patrick H. Lauke [mailto:redux@splintered.co.uk]
Sent: Friday, November 17, 2017 2:09 AM
To: w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>
Subject: Re: [breadcrumbs] best practice

On 17/11/2017 09:43, Harry Loots wrote:
> Hi all
> what is the current thinking on breadcrumbs.
> I have a situation where a client want to display the page name in the
> breadcrumb, then repeat the page name immediately afterwards as a
> heading, which I know can be a nuisance for text-to-speech users.

I'd say across all the things that can be problematic/nuisance on web pages, that's a pretty minor thing. I'd further argue that even if the text is repeated, it does serve two separate purposes: in the breadcrumb navigation, to indicate this is the current page; as a heading, to, well, act as heading for the actual page's content.

In short, don't think it's an actual problem.

> Are their any firm rules on breadcrumbs, or strong views for that
> matter :)

No firm rules, as with most things in accessibility *grin*

And as is often the case, it'll depend on the specific situation (i.e.
how is the breadcrumb actually marked up? how long are these page titles
- a few words, or as long as a whole sentence - etc).

Patrick H. Lauke

www.splintered.co.uk<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.splintered.co.uk&d=DwMFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=aWgRqmoh0Xuzjf7UaXq44Tf6K41u809DPE44ioVTOvk&m=ub-ddeC6nrau1KGgW2ij-KfJ07OloXIcCcuSl12kihU&s=0iSCuOEgM-Mpq4ZREVDh0x-20B5M9nLUXBGLejCt2os&e=>| https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_patrickhlauke&d=DwIFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=aWgRqmoh0Xuzjf7UaXq44Tf6K41u809DPE44ioVTOvk&m=EaHSkTPXnr7dz7IhuHLdmQGRwCs_U25W6xuCtcpx4xw&s=J975Gwb3-Ry2o92iqMAP_PFQbnC6dMa3J0OrDfrDMig&e=https://urldefense.proofpoint.com/v2/url?u=http-3A__flickr.com_photos_redux_&d=DwIFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=aWgRqmoh0Xuzjf7UaXq44Tf6K41u809DPE44ioVTOvk&m=EaHSkTPXnr7dz7IhuHLdmQGRwCs_U25W6xuCtcpx4xw&s=E-yGcPVgZ3j5HsanJo6IZR8ue5Lp2jALvkQKRFh3s8Q&e=| https://urldefense.proofpoint.com/v2/url?u=http-3A__redux.deviantart.com&d=DwIFaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=aWgRqmoh0Xuzjf7UaXq44Tf6K41u809DPE44ioVTOvk&m=EaHSkTPXnr7dz7IhuHLdmQGRwCs_U25W6xuCtcpx4xw&s=KGbXWvU6wp3d7m7ac7HfF4DTluIOlvt_KrAKkbX-j3E&e=

twitter: @patrick_h_lauke | skype: patrick_h_lauke

Received on Thursday, 23 November 2017 00:46:39 UTC

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