While chapters are visually distinguished through styling, assistive technology users require programmatic identification of these structures. Using ARIA roles and EPUB types ensures that navigation and semantic meaning are preserved. This semantic structure also facilitates future content updates and maintenance.

Objectives

• Ensure that assistive technologies can navigate and interpret the book’s structure.
• Provide clear identification for chapters and other book sections.

Implementation

• Apply appropriate ARIA roles and EPUB types to identify various sections of the book, such as chapters.
• Document the ARIA roles used and their implementation to simplify maintenance and future updates.

Control

• Use assistive technologies such as NVDA, JAWS, or VoiceOver to navigate the book and verify that sections are correctly identified.