'''DTBook''' (an [[Acronym and initialism|acronym]] for ''DAISY Digital Talking Book'') or '''DAISY XML''' is a [[XML]]-based [[document file format]]. It is used in [[EPUB]] 2.0 [[e-book]]s and [[DAISY Digital Talking Book]], as well as other places. Unlike other document file formats such as [[open document format|ODF]] DTBook puts a strong emphasis on structural encoding, but in comparison to other structural file formats such as [[DocBook]] and [[Text Encoding Initiative|TEI]] it is fairly simple.
DTBook was developed by the Daisy Consortium as an [[accessibility|accessible]] file format similar to [[HTML]], with special regard to the requirements of the [[Visual impairment|visually impaired]]. Therefore, it puts an emphasis on a clear, precise navigation and the explanation of visual elements.
DTBook is further developed by the Daisy Consortium and is defined with a [[Document Type Definition|DTD]] as part of the [[National Information Standards Organization|NISO]] standard Z39.86-2005
== NIMAS == NIMAS ([[National Instructional Materials Accessibility Standard]]) – a U.S. standard for electronic books for the visually impaired – defines a subset of DTBook XML elements. NIMAS documents are valid according to the DTBook DTD.
== Example == <syntaxhighlight lang="xml"> <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE dtbook PUBLIC "-//NISO//DTD dtbook 2005-3//EN" "http://www.daisy.org/z3986/2005/dtbook-2005-3.dtd"> <dtbook version="2005-3" xml:lang="de-DE"> <head> <meta name="dc:Title" content="Hello World"/> </head> <book> <bodymatter> <level1> <h1>Hello World</h1> <p>This is an example.</p> </level1> </bodymatter> </book> </dtbook> </syntaxhighlight>
== External links == * [http://www.daisy.org/z3986/structure/ DAISY/NISO Standard – Guidelines] * [http://www.daisy.org/publications/docs/theory_dtbook/theory_dtbook.html Theory Behind the DTBook DTD]
{{DEFAULTSORT:Dtbook}} [[Category:Document-centric XML-based standards]] [[Category:Markup languages]]