LVTF Documents

From Low Vision Accessibility Task Force

User Requirements Doc


  • Document low vision user needs/requirements related to web accessibility
  • Provide the basis for future work on possible WCAG techniques, understanding, extensions, and other guidance

Out of scope for this doc - to be elsewhere:

  • Help developers, designers, etc. understand generally how people with low vision use the web
    • comment: Realistically, how many developers, designers, etc. will actually read this Note? Instead of trying to reach this audience with this Note, do we want a different publication/format for which they are the primary audience? e.g., a WAI Resource page or a Tutorial or such that doesn't have the front matter and rigidity of a Note? Perhaps EOWG could help with that? {shawn}



  • Standards and guidelines developers – including LVTF for WCAG materials, as well as others beyond WAI


  • Content developers, designers, writers, etc. (might have different resource where they are primary audience)
  • User Agent developers, designers, etc. (might have different resource where they are primary audience)


  • Cover broad issues, including what might be provided by content, user agents, authoring tools
  • Minor mention of hardware aspects (like turning down screen brightness) and OS aspects (like high contrast mode)
  • This Note will be focused on a short overview of low vision and explanations of user requirements. Additional details will go in separate non-TR pages on the W3C/WAI website. (13Jan2016 minutes)

Content Notes

  • Overview of low vision issues
  • What users need in interfaces (see Scope above)
    • Focus on general needs. Mention but not focus on specific problems in current environment (e.g., mouse pointer covers tooltip text).
    • Not include specific potential techniques, SC, etc. at this point — that will be separate.
    • Leave out for first draft but possibly include later: Impact/priorities (e.g., no horizontal scroll is high and justification is lower).
  • Provide checklist someway (could be filter just the user requirements or an appendix list or whatever)

Out of scope for this doc - to be elsewhere:

  • User experience stories (not the specific issues that we have documented in US-UC wiki page, but more general experiences)
  • Supporting Research

Title ideas


  • Low Vision User Accessibility Requirements or Low Vision User Requirements
    • comment: although it's simple, does it put the emphasis on the users instead of accessibility ? some of the others do, too. {shawn}
    • +1s in 4 Nov 2015 telecon
    • comment: some concern that "low vision users" is not people-first language {shawn}
  • Low Vision Accessibility User Needs
  • Low Vision Accessibility Requirements
  • Accessibility Needs of People with Low Vision
  • Understanding Low Vision Accessibility
  • Accessibility Requirements of People with Low Vision
  • Web Accessibility Needs of People with Low Vision

misc notes

Previous thoughts on structure for user needs note:

  • these are who LV users are (overview)
  • functional limitations (e.g. low acuity - larger font size)
  • these are their visual content needs
  • appendix: map functional limitations to low vision conditions

from 30 Sept agenda

Archive: Deliverables

The LVTF initially considered the following possible deliverables:

  • User Requirements doc
  • Delta/Gap Analysis - user requirements covered in existing WCAG, UAAG, and ATAG
  • WCAG 2.0 Extension
  • WCAG 2.0 Techniques – edits to existing techniques and/or new techniques – including sufficient, advisory, failure
  • WCAG 2.0 Understanding – edits to existing and/or new
  • WAI resource - maybe tutorial or other type - that is less formal and easier to update than a TR publication, and is specifically targeted to designers & developers
  • Wiki - Some wiki pages are just internal information gathering and processing, and others we might want to be more polished to point to, e.g., the research page