source

The <source> element contains a reference to a resource from which the present topic is derived, either completely or in part. The element can contain a description of the resource; the href reference can be a string or a URL that points to it.

Contains

( text data or keyword or option or parmname or apiname or cmdname or msgnum or varname or wintitle or term) (any number)

Contained by

prolog

Inheritance

topic/source

Attributes

Name	Description	Data Type	Default Value	Required?
href	A pointer to the external resource from which the present resource is derived. The href attribute identifies the destination of the resource using conventional URL syntax.	CDATA	#IMPLIED	No
keyref	Currently not implemented in DITA processors. Provides a key that a process can use to look up associated information.	NMTOKEN	#IMPLIED	No
%global-atts; (xtrf, xtrc)	A set of related attributes, described at %global-atts;	parameter entity	PE not applicable	Not applicable
class	A common attribute described in Other common DITA attributes

Example

<prolog>
 <source href="http://www.ibm.com">Somewhere, someplace</source>
</prolog>