NCX Elements

 

• navLevel
  - book -> chapters -> sections ...
  - play -> act -> scene ...
• navObject
  
  <navObject class="chapter">
     <text>Chapter 1: Heat Energy</text>
     <audio src="h001.mp3" clip-begin="2.3s"... />
     <content src="hech01.smil" />
  </navObject>
• Model allows for various types of content:
  - Legacy books may be just audio
  - Partial production (some audio/some TTS)