W3C:IndieUI in its context Andy Heath 2014-03-29 : Paris, France - - PowerPoint PPT Presentation
W3C:IndieUI in its context Andy Heath 2014-03-29 : Paris, France - - PowerPoint PPT Presentation
W3C:IndieUI in its context Andy Heath 2014-03-29 : Paris, France Braillnet 8th European e-Accessibility Forum: User-driven e-Accessibility Presentation Context These are my own views, not necessarily those of any organisation I do this
Presentation Context
- These are my own views, not necessarily those of
any organisation
- I do this work because I want to live in an
inclusive world where we use technology to make life better and easier for us all
- Nobody pays me (I would like that they did)
- Two routes through these slides – route 1 - techy
and concise but hard, route 2 - easy and woffly, explains the IndieUI context (get the technical detail later), audience choice
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IndieUI
- http://www.w3.org/WAI/IndieUI/
- Participants include: Apple, IBM, Google, Opera,
The Inclusive Design Research Centre Toronto, me + 8 other orgs
- For Mobile - consists of
– Events https://dvcs.w3.org/hg/IndieUI/raw- file/default/src/indie-ui-events.html – User Context https://dvcs.w3.org/hg/IndieUI/raw- file/default/src/indie-ui-context.html – Both at 1.0 Editors drafts
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Route 1
Events
- Low level interface events delivered through OS eventually to web app
- IndieUI: Events 1.0 is an abstraction between physical, device-specific user
interaction events and inferred user intent such as scrolling or changing
- values. This provides an intermediate layer between device- and modality-
specific user interaction events, and the basic user interface functionality used by web applications. IndieUI: Events focuses on granular user interface interactions such as scrolling the view, canceling an action, changing the value of a user input widget, selecting a range, placing focus
- n an object, etc. Implementing platforms will combine modality-specific
user input, user idiosyncratic heuristics to determine the specific corresponding Indie UI event, and send that to the web application in addition to the modality-specific input such as mouse or keyboard events, should applications wish to process it.
- Essentially for 1.0 – fix the problems
- Developer must know about the event and register interest in that event
(less impact on DOM)
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Route 1
- 3. UI Request Events3.1 Interface UIRequestEvent
– 3.1.1 Attributes – 3.1.2 Determining the Event Receiver – 3.1.3 UIRequestEventInit
- 3.1.3.1 Dictionary UIRequestEventInit Members
– 3.1.4 UIRequestEvent Types
- 3.2 Interface UIFocusRequestEvent
– 3.2.1 Attributes – 3.2.2 Enumeration FocusRequestFocusType – 3.2.3 UIFocusRequestEventInit
- 3.2.3.1 Dictionary UIFocusRequestEventInit Members
– 3.2.4 UIFocusRequestEvent Types
- 3.3 Interface UIManipulationRequestEvent
– 3.3.1 Attributes – 3.3.2 UIManipulationRequestEventInit
- 3.3.2.1 Dictionary UIManipulationRequestEventInit Members
– 3.3.3 Discrete UIManipulationRequestEvent Types – 3.3.4 Continuous UIManipulationRequestEvent Types
- 3.4 Interface UIScrollRequestEvent
– 3.4.1 Attributes – 3.4.2 Enumeration ScrollRequestScrollType – 3.4.3 UIScrollRequestEventInit
- 3.4.3.1 Dictionary UIScrollRequestEventInit Members
– 3.4.4 UIScrollRequestEvent Types – 3.4.5 Continuous UIScrollRequestEvent Types
- 3.5 Interface UIValueChangeRequestEvent
– 3.5.1 Attributes – 3.5.2 Enumeration ValueChangeRequestChangeType – 3.5.3 UIValueChangeRequestEventInit
- 3.5.3.1 Dictionary UIValueChangeRequestEventInit Members
– 3.5.4 UIValueChangeRequestEvent Types
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Route 1
User Context
- The primary goal of IndieUI User Context is to provide
authorized web applications access to information about a user's relevant settings and preferences, to provide the best possible user experience to all users. Some complex web applications can provide a much better experience if given access to information such as a user's preferred color, font, screen, and even *restricted* assistive technology settings such as a preference to render captions, or whether a screen reader is on. General web pages developed using best practices may never need access to restricted user settings, but complex web applications can utilize this information to enhance the performance and user interface.
- 1.0 is fairly low level preferences
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Route 1
- 5. Settings Keys and Related Media Feature counterparts5.1 User Color Settings
– 5.1.1 Key: user-color
- 5.1.1.1 Associated Media Feature: user-color
– 5.1.2 Key: user-background-color
- 5.1.2.1 Associated Media Feature: user-background-color
– 5.1.3 Key: colors-inverted
- 5.1.3.1 Associated Media Feature: colors-inverted
– 5.1.4 Key: user-contrast
- 5.1.4.1 Associated Media Feature: user-contrast
– 5.1.5 Key: monochrome
- 5.1.5.1 Associated Media Feature: monochrome
- 5.2 User Type/Font Settings
– 5.2.1 Key: user-font-size
- 5.2.1.1 Associated Media Feature: user-font-size
– 5.2.2 Key: user-minimum-font-size
- 5.2.2.1 Associated Media Feature: user-minimum-font-size
– 5.2.3 Key: user-line-height – 5.2.4 Key: user-letter-spacing – 5.2.5 Key: user-word-spacing
- 5.3 User Media Settings
– 5.3.1 Key: subtitles – 5.3.2 Key: subtitle-languages – 5.3.3 Key: subtitle-type – 5.3.4 Key: user-subtitle-color
- 5.3.4.1 Associated Media Feature: user-subtitle-color
– 5.3.5 Key: user-subtitle-background-color
- 5.3.5.1 Associated Media Feature: user-subtitle-background-color
– 5.3.6 Key: audio-description
- 5.4 Screen Reader Settings
– 5.4.1 Key: screenreader
- 5.4.1.1 Associated Media Feature: screenreader
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Route 1
Beyond 1.0
- Work in Progress
– http://www.w3.org/WAI/IndieUI/wiki/Proposals/K eyValueProperties – http://www.w3.org/WAI/IndieUI/wiki/User_Conte xt/Requirements
- I hope
– Higher level abstract media and UI preferences interoperable with some other pieces
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Route 1
Accessibility
- Is a relationship
- Producer Consumer
- Every effort to improve it is based on a way to
cross the producer/consumer gap. It’s a hard gap to cross
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Route 2
A few Models
- Medical (e.g. ICIDH)
- Arthritic wrists – can’t
turn door handles
- Negative “you don’t
have X, you aren’t normal”
- It’s a model and
people (choose to) forget that
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- Social
- Society disables us
by its choices
- Yes I like this, but
how do we implement it ?
Route 2
Some Models
- Technological
- Evaluation, testing,
what can we do with content to make it accessible (e.g. WCAG)?
- Yes this is good but
its often producer- side only and often defeated by complexity
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bio-psychosocial UK Incapacity Benefits: I think your capabilities are X, Y, Z and you can work This is RUBBISH
Route 2
Some Models
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- User Needs
- Instead of “arthritic wrists, can’t turn handle”
- Needs handle that can be turned with low
force
- Can optimise designs and deliveries for
individual users
Route 2
A Very Big Problem:
- Producer: I know what you need
- Consumer: This is rubbish, I can’t use it
- I believe this is built in to how perception
works (categorisation)
- Accessibility is a relationship
- To improve it both sides need to have
influence
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Route 2
Another Problem
- Not just one producer
– Many producers – Many technologies – Market Place
- Need to get some coherence and interoperability –
- therwise accessibility gets forgotten and after-the-fact
companies cannot fill the gap (too complex, too expensive to keep up)
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Route 2
Desktops
- Originally no accessibility
- Now standard Accessibility API’s for major
platforms ISO:13066 standardised in ISOIEC SC35 User Interfaces
- Developers (e.g. screen readers) can develop to
them and it works
- Still have many platforms and versions and
changes cost a lot to developer companies
- Still have e.g. interoperability issues (partly
security) – often what works on one platform won’t on another
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Route 2
Mobile Platforms
- Can we do better ? YES (well we can try)
- Common API to Web Apps (like Desktop API’s)
- Individual Preferences (so users have some
control and influence in what they get).
– These together are IndieUI (Events and User Context) – Content and UI adapt to preferences in context
- Challenges:
– Getting organisations doing pieces of this in harmony – What preferences ? – Diverse business strategies (e.g. walled gardens and
- pen ones, security and privacy)
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Route 2
Some organisational pieces
- Metadata on content and UI
– http://www.w3.org/wiki/WebSchemas/Accessibility
- Preferences to match these
– In progress, developed from IMS Access for All V3.0 (http://www.imsglobal.org/accessibility/#afav3 ) and ISO/IEC Individualised Adaptability and Accessibility in L.E.T. (http://www.iso.org/iso/home/news_index/news_arc hive/news.htm?refid=Ref1217 ) – currently under re- design
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Route 2
- accessibilityFeature
– alternativeText – annotations – audioDescription – bookmarks – braille – captions – ChemML – describedMath – displayTransformability – highContrastAudio – highContrastDisplay – index – largePrint – latex – longDescription – MathML – none – printPageNumbers – readingOrder – signLanguage – structuralNavigation – tableOfContents – taggedPDF – tactileGraphic – tactileObject – timingControl – transcript – ttsMarkup – unlocked
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- E.g
- Notes:
- This is Metadata on
Content
- Its low level, also
need a high level abstract sensory mode we call accessMode in IMS
Route 2
Related Initiatives
- GPII
– http://gpii.net
- EPUB 3 and EDUPUB
– http://idpf.org/edupub-europe-2014 – Adopting that WebSchemas Metadata – Needs preferences
- IEEE Actionable Data Book
– http://ieee-adb.org/
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Route 2
ADBOOK
- http://www.computer.org/portal/web/Musings-from-the-Ivory-
Tower/content?g=7512968&type=article&urlTitle=the-next- disruption-in-digital-learning
- For one thing, it means that eBooks are no longer just static books
made digital. The transition to HTML5 and the W3C Open Web Platform opens up new, unexplored worlds of interactivity. For another thing, the same content may be used simultaneously on mobile devices and other platforms, as well as adapted to meet individual preferences and needs, including accessibility-related
- needs. A commuter on a noisy train can consume it as easily as a
student hanging out on a balcony or a worker on a high-bandwidth connection in a modern office. Yet, that's not all. It also solves the business problem of consolidating content into a single, standardized format that can be conveniently managed for print, mobile, and desktop delivery. A case in point is IBM's recent decision to support EPUB as the company's primary packaged portable document format.
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Route 2
Me – happy to answer queries
- andyheath@axelrod.plus.com
- http://axelafa.com but its not up to date
- What I do – Support for Individualisation in
Standards
– IMS Accessibility SIG, IndieUI, ISO/IEC JTC1 SC36 editor of 24751, IEEE ADBOOK lead the accessibility preferences work, W3C IndieUI – developing the User Context, ISO/IEC JTC1 SC35 User Interfaces, Revision
- f Guide 71/CEN Guide 6, ISO Special Working Group
- n Accessibilty, ISO Special Working Group on the
Internet of Things. Phew.
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