The
description
element is the root container element for a description. It consists of an optional container element for metadata information
(the
head
) and a required container for the different description types and alternate image renditions (the
body
).
The language of the description can be specified by attaching an
xml:lang
attribute to the
description
element. If the description will be made available in a standalone context (i.e., in which its language cannot be inherited
from a host content document), the language should always be specified.
The
DIAGRAM Description profile provides the ability to compile one or more
description
elements into a single document for distribution (e.g., to accompany an EPUB).
When storing a description in a standalone context, the Description feature namespace
http://www.daisy.org/ns/z3998/authoring/features/description/
should be declared on the
description
element using the xmlns namespace association mechanism defined in
XMLNAMES
. Although not required, the prefix
d
is recommended.