Universidad de Alicante
Departamento de Lenguajes y Sistemas Informáticos

Accesibilidad Web


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Principios y directrices de WCAG 2.0 (en inglés)

NOTA: WCAG 2.0 fue reemplazado por WCAG 2.1 en junio de 2018.

  1. Principle 1: Perceivable - Information and user interface components must be presentable to users in ways they can perceive.
    • Guideline 1.1 Text Alternatives: Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.
    • Guideline 1.2 Time-based Media: Provide alternatives for time-based media.
    • Guideline 1.3 Adaptable: Create content that can be presented in different ways (for example simpler layout) without losing information or structure.
    • Guideline 1.4 Distinguishable: Make it easier for users to see and hear content including separating foreground from background.
  2. Principle 2: Operable - User interface components and navigation must be operable.
    • Guideline 2.1 Keyboard Accessible: Make all functionality available from a keyboard.
    • Guideline 2.2 Enough Time: Provide users enough time to read and use content.
    • Guideline 2.3 Seizures: Do not design content in a way that is known to cause seizures.
    • Guideline 2.4 Navigable: Provide ways to help users navigate, find content, and determine where they are.
  3. Principle 3: Understandable - Information and the operation of user interface must be understandable.
    • Guideline 3.1 Readable: Make text content readable and understandable.
    • Guideline 3.2 Predictable: Make Web pages appear and operate in predictable ways.
    • Guideline 3.3 Input Assistance: Help users avoid and correct mistakes.
  4. Principle 4: Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
    • Guideline 4.1 Compatible: Maximize compatibility with current and future user agents, including assistive technologies.

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