Digital Item Declaration Language - AbsoluteAstronomy.com

Digital Item Declaration Language (DIDL) is an XML

XML

Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....

dialect standardized in MPEG-21

MPEG-21

The MPEG-21 standard, from the Moving Picture Experts Group, aims at defining an open framework for multimedia applications. MPEG-21 is ratified in the standards ISO/IEC 21000 - Multimedia framework .MPEG-21 is based on two essential concepts:...

. The schema files are available at MPEG.

Example

Image item which two images

Choice for selection of image 1 or 2. Digital items do not need to have choices.

Selection 1

Selection 2

Picture 1 text summary

This is a plain text resource which is a text about picture 1

Picture 1 text#1

Picture 1 text#2

Picture 2 text summary

This is a plain text resource which is a text about picture 2

Picture 2 text#1

Picture 2 text#2

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