The architectural attributes group includes a set of attributes defined for document
level elements such as
attributes are intended to provide information about the DITA namespace, what level of DITA is
in use, and what vocabulary modules are in use.
the version of the architecture that is in use. The default value will increase with
each release of DITA. This attribute is in the namespace
"http://dita.oasis-open.org/architecture/2005/". This attribute is defined with the
XML data type CDATA, but uses a default value of the current version of DITA. The
current default is "1.3".
the default DITA
Although this is technically a namespace rather than an attribute, it is included here
because it is specified as an attribute in the DTD grammar files distributed by OASIS.
The value is fixed to "http://dita.oasis-open.org/architecture/2005/".
the specialized domains that are included in the DTD or Schema. This attribute is
defined with the XML data type CDATA, and each new document type SHOULD specify a default. The value
will differ depending on what domains are included in the current DTD or Schema; a
sample value is "(topic ui-d) (topic hi-d) (topic pr-d) (topic sw-d) (topic ut-d) (topic