Accessibility Better, Faster, Cheaper
Post on 22-Jan-2016
33 Views
Preview:
DESCRIPTION
Transcript
AccessibilityBetter, Faster,
Cheaper
Shawn Lawton Henry
§ Were *not* in accessibility session yesterday?
W3C WAI World Wide Web Consortium (W3C)
Web Accessibility Initiative (WAI)
www.w3.org/WAI/
Screen Magnification
Topics Responsibilities
Business Case
Black, White, Gray
Collaborators with Disabilities
Handouts: Additional URIs
Interdependent Components Myth:
Web accessibility is the responsibility of the Web content producer
Fact:Web accessibility depends on several components working together
Components of Web Accessibility
User Agent(UAAG)
Authoring Tool(ATAG)
Web Content(WCAG)
Make or Break
ACTION ! Actively encourage
improvements in authoring tools
WAI resources:
Authoring Tool Accessibility Guidelines (ATAG)
Selecting and Using Authoring Tools for Web Accessibility
Topics Responsibilities
Business Case
Developing a Web Accessibility Business Case for Your Organization
Corporate Social Responsibility (CSR)
Search Engine Optimization (SEO) & Usability
Black, White, Gray
Collaborators with Disabilities
Access for people with disabilities is
it ;however…
Business Case Developing a Web Accessibility Business
Case for Your Organization
Social Factors
Technical Factors
Financial Factors
Legal & Policy Factors
Examples: Access Corporate social responsibility (CSR)
Overlap with “digital divide”
Benefits also:
Older people
Low literacy, not fluent in the language
Low-bandwidth connections, older technologies
New and infrequent web users
Employees with disabilities
SEO – Accessibility Overlap
Google's Webmaster Guidelines
www.google.com/webmasters/guidelines.html
“Following these guidelines will help Google find, index, and rank your site.”
Netherlands b
ank
SEO – Accessibility Overlap SEO: “Make sure that your TITLE and ALT
tags [sic] are descriptive and accurate.”
Accessibility: TITLE read by screen reader
Accessibility: ALT read by screen reader, text browsers
(Usability: search results, bookmarking, title bar)
(By the way, alt is an attribute, not a tag.)
SEO – Accessibility Overlap WCAG: “Provide a text equivalent for every
non-text element”
SEO: Text equivalents for multimedia
(Usability e.g., reporter searching for quote in CEO speech)
SEO – Accessibility Overlap SEO: “Check for . . . correct HTML.”
SEO: Headings
WCAG: “Use header elements to convey document structure...”
A: Headings navigation
SEO – Accessibility Overlap SEO: “Make a site with clear . . . text links.”
SEO: “Keep the links on a given page to a reasonable number (fewer than 100).”
WCAG: “Clearly identify the target of each link.”
A: Links list
A: Overview by links (sad, but true)
SEO – Accessibility Overlap SEO: “Offer a site map to your users.”
WCAG: “Provide information about the general layout of a site (e.g., a site map…”
SEO – Accessibility Overlap SEO: “Try to use text instead of images to
display important names, content, or links. The Google crawler doesn't recognize text contained in images.”
WCAG 1.0: “When an appropriate markup language exists, use markup rather than images to convey information.”
SEO – Accessibility Overlap SEO: “Use a text browser such as Lynx to examine
your site, because most search engine spiders see your site much as Lynx would. If fancy features such as JavaScript, cookies, session IDs, frames, DHTML, or Flash keep you from seeing all of your site in a text browser, then search engine spiders may have trouble crawling your site.”
A: same as above, substitute: “…then people with disabilities may have trouble using your site.”
Topics Responsibilities
Business Case
Developing a Web Accessibility Business Case for Your Organization
CSR
Search Engine Optimization (SEO) & Usability
Black, White, Gray
Collaborators with Disabilities
BadGood
BadGood
Prioritize Greatest impact on users experience
Impact many pages
Templates
Style sheets
Elements such as navigation bars and scripts
Prioritize Greatest impact on users experience Impact many pages Pages
Home page
Main pages & functionality for purpose of site, including:
The path to get there
The path to complete transactions
Frequently-used pages & functionality, including path & transactions
Prioritize by Barrier WCAG 1.0 Priorities (WCAG 2.0 Levels)
Approach:
1. Priority 1
2. Lower priorities
Approach:
1. High impact & easy
2. Harder
Prioritize by Barrier Impact on people with disabilities
Depends on context of site
Effort required for repair
Time, cost, and skills
Type of repair, development environment
Resources Improving the Accessibility of Your Web
Site (WAI Resource)www.w3.org/WAI/impl/improving
Understanding Web Accessibility(book chapter online)www.uiaccess.com/understanding.html
Topics Responsibilities
Business Case
Black, White, Gray
Collaborators with Disabilities
Involving Users: Benefits Better understand issues
Understand “why” behind guidelines
Implement more effective solutions
More efficient (thus maximize investment)
Powerful motivator Demo success first, then own
More budget
Note: Alone doesn’t cover all issues, WCAG vital role
Example alt="This image is a line art drawing of a dark green magnifying glass. If you click on it, it will take you to the Search page."
Involving Users: Scope Range
Informal, “Hey, try this”
Formal usability testing
Informal early on & throughout
Diverse users
Experience with Web & AT(too low or too high)
Involving Users: Scope Range
Informal, “Hey, try this”
Formal usability testing
Informal early on & throughout
Diverse users
Experience with Web & AT(too low or too high)
Tips for Involving Users First
Preliminary review
Pilot test
Expert evaluator with first-hand experience
Carefully consider feedback
What’s wrong:markup/code, AT, user knowledge
Resources Just Ask: Integrating Accessibility
Throughout Design (online book) The Basics Accessibility in the User-Centered Design
Process
Involving Users in Web Accessibility Evaluation (WAI Web resource)
Understanding Web Accessibility (book chapter online)
ACTION ! Actively encourage authoring tools
Promote business case
Do the high impact & easy stuff now
Involve users with disabilities throughout
AccessibilityBetter, Faster,
Cheaper
Shawn Lawton Henry
top related