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<doc-ref> Document Reference Designation

A pre-constructed, formatted reference to the standard that is used for display purposes (such as online display or assembling PDF), particularly when an editorial variant of the designation is needed for rendering.

Usage/Remarks

A typical <doc-ref> element includes the standard’s designator and other information such as the language of the standard, e.g., “ISO 2560:2009(en)”. While it would usually be possible to construct the <doc-ref> from the content of other metadata elements, the pre-combined <doc-ref> form provides a convenience for rendering, without resorting to a transform or hardcoding editorial rules.
Related Elements
Contrast this with the metadata element <std-ref>, which gives a reference form of identifier for a standard, typically the designator. In some cases, a <doc-ref> will contain the same content as one of the <std-ref>s; in other cases <doc-ref> may be a slight variant. (Note that there can be several <std-ref>s, such as dated and undated forms, distinguished by the @type attribute.)
Attributes

Base Attributes

id
xml:base
Models and Context
May be contained in
<iso-meta>, <nat-meta>, <reg-meta>, <std-doc-meta>, <std-meta>
Description
Text, numbers, or special characters, zero or more
Content Model
<!ELEMENT  doc-ref      (#PCDATA %doc-ref-elements;)*                >
Expanded Content Model

(#PCDATA)*

Tagged Sample

In ISO standard, part of <iso-meta> 

...
<iso-meta>
 ...
 <content-language>en</content-language>
 <std-ref type="undated">ISO 2560</std-ref>
 <std-ref type="dated">ISO 2560:2009</std-ref>
 <doc-ref>ISO 2560:2009(en)</doc-ref>
 <release-date iso-8601-date="2009-05-30" 
   date-type="published">2009-05-30</release-date>
 ...  
</iso-meta>
...