Learning Objectives
After completing this lesson you will be able to:
- Understand the differences of Accessibility Standards.
- Recognize Web Accessibility Guidelines.
- Give examples of accessible and inacessible Web pages and describe the reasons.
- Identify components that are accessibile vs inaccessible.
Activity Checklist
- Read: Web Content Accessibility Guidelines
- Read: WCAG 2 Guidelines from W3C
- Read: PCC Web Accessibility Guidelines for Online Course Content
- Download: The PDF Web Accessibility Guidelines handbook from PCC
- Download: Self Checklist from W3C
- Quizzes: Web Accessibility Guidelines Assessment
PCC Accessibility Guidelines for Online Content
These guidelines are based on internationally accepted, web accessibility guidelines WCAG 2.0 AA. This information is also available in the download Web Accessibility Guidelines Handbook.
- Headings: Use properly formatted headings to structure the page.
- Lists: Format lists as lists.
- Link: Write meaningful link text.
- Table: Create tables with column and/or row headers
- Table: Maintain a proper reading order in tables, forms and slides.
- Color: Use sufficient color contrast.
- Color: Don't use color alone to convey meaning.
- Keyboard Navigation: Ensure that any action that uses a mouse, can also be completed by keyboard alone.
- Image: Provide alternative text descriptions for images.
- Navigation: Design clear and consistent navigation.
- Animation: Eliminate or limit blinking / flashing content to 3 seconds.
- Form: Label form fields and buttons clearly.
- Software: Don't require inaccessible software applications be used.
- Assignment: Provide Alternative way for accessing content.
- Functional keyboard: Math and Science content can be access with a screen reader.
- Accommodation Statement: Include Accommodations Statement in your syllabus.
Additional Resources
- Read: Overview of the Rehabilitation Act of 1973 (Sections 504 and 508) (Optional)
- Three levels of WCAG 2.0 - A, AA, AAA
Summary
In this lesson you learn the differences of Web Content Accessibility Guidelines (WCAG). WCAG 2.0 is a stable, referenceable technical standard. It has 12 guidelines that are organized under 4 principles: perceivable, operable, understandable, and robust. For each guideline, there are testable success criteria, which are at three levels: A, AA, and AAA.
Four principles include:
- Perceivable
- Provide text alternatives for non-text content.
- Provide captions and other alternatives for multimedia.
- Create content that can be presented in different ways, including by assistive technologies, without losing meaning.
- Make it easier for users to see and hear content.
- Operable
- Make all functionality available from a keyboard.
- Give users enough time to read and use content.
- Do not use content that causes seizures.
- Help users navigate and find content.
- Understandable
- Make text readable and understandable.
- Make content appear and operate in predictable ways.
- Help users avoid and correct mistakes.
- Robust
- Maximize compatibility with current and future user tools.
Assessment
- Take Web Accessibility Guidelines Assessment. (20 points)