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<proj-id> ISO-Specific Project Identifier

The project number for the project within which this standards document was developed.

Usage/Remarks

Different Metadata Levels
The <proj-id> element may be used directly inside <std-meta> or within <doc-ident> (which is inside the three ISO-related standards metadata elements: <iso-meta>, <reg-meta>, and <nat-meta>).
ISO Note
For ISO-related Processing, this element holds an ISO or ISO associate’s project number. In ISO STS, from which this Tag Set was developed, a <proj-id> element was required in the metadata, but the ISO STS documentation states that authors/adopters would not always be able to provide this identifier. Therefore, software that processes the ISO-specific STS vocabulary (in both NISO STS and ISO STS) needs to be prepared for the empty string as content of this element.
Attributes

Base Attributes

id
xml:base
Models and Context
May be contained in
<doc-ident>, <std-meta>
Description
Text, numbers, or special characters, zero or more
Content Model
<!ELEMENT  proj-id      %proj-id-model;                              >
Expanded Content Model

(#PCDATA)*

Tagged Sample

ISO-specific, part of <doc-ident> 

...
<doc-ident>
 <sdo>ISO</sdo>
 <proj-id>57385</proj-id>
 <language>en</language>
 <release-version>IS</release-version>
 <urn>iso:std:iso-iec:guide:71:ed-2:v1:en</urn>
</doc-ident>
...