A externally defined institutional identifier, whether publisher-specific (for example “AIP”) or from an established identifying authority (for example, “Ringgold” or “ISNI”).
A single institution may have multiple identifiers, either because different assigning agencies have defined an identifier or because the entity belongs to more than one larger organizational unit, for example, a laboratory may be part of multiple institutions.
Common Practice: All levels of a multi-tier organization are typically listed within a single <institution> element and given a single institution identifier. For example, a program, a department, and a university may be part of the same <institution>, inside a single <institution-wrap> with a single <institution-id>. Similarly both a corporation and a division within the corporation might be inside one <institution> element, inside a <institution-wrap> with a single institution identifier (<institution-id>.
<institution-wrap> <institution-id>Moo-U-41</institution-id> <institution content-type="edu"> University of Frostbite Falls, Dept of Campus Security, Dept of Moose and Squirrel Security, Office of the Acting Dean</institution> </institution-wrap>
Alternatively, a divisional distinction such as an “organization” element with subordinate “dept” and an “office” inside a department could tagged using multiple <institution> elements with the @content-type attribute differentiating institution, department, and office. Each of these divisions could be assigned an institutional identifier (<institution-id>), which would require the wrapper element <institution-wrap>.
<institution-wrap>
<institution content-type="edu">
University of Frostbite Falls</institution>
<institution-id>Moo-U-41</institution-id>
</institution-wrap>
<institution-wrap>
<institution content-type="dept">
Dept of Campus Security</institution>
<institution-id>dept-42s</institution-id>
</institution-wrap>
<institution-wrap>
<institution content-type="dept">
Dept of Moose and Squirrel Security</institution>
<institution-id>rcky-n-bllw</institution-id>
</institution-wrap>
<institution-wrap>
<institution content-type="office">
Office of the Acting Dean</institution>
<institution-id>4850ws</institution-id>
</institution-wrap>External Identifier: The element holds an external identifier, assigned to an institution by a publisher, an archive or library, or an agency such as Ringgold or ISNI. The contents of this element should not be confused with the @id attribute, which holds an internal document identifier that can be used by software to preform a simple link.
<!ELEMENT institution-id
%institution-id-model; >(#PCDATA)
Text, numbers, or special characters
In metadata, inside an affiliation:
...
<book-meta>
...
<contrib-group>
<contrib contrib-type="author" rid="aff1">
<name><surname>Gaillard</surname>
<given-names>T. D.</given-names></name>
</contrib>
<contrib contrib-type="author" rid="aff1">
<name><surname>Clark</surname>
<given-names>H. S.</given-names></name>
</contrib>
</contrib-group>
<aff id="aff1">
<institution-wrap>
<institution-id institution-id-type="Ringgold">1812</institution-id>
<institution content-type="university">Harvard University</institution>
</institution-wrap>
</aff>
<author-notes>
<fn>
<p>Correspondence to: TD Gaillard <email>tgail@harvard.edu</email></p>
</fn>
</author-notes>
...
</book-meta>
...
In metadata, inside a funding group:
... <funding-group> <award-group> <funding-source> <institution-wrap> <institution content-type="laboratory">Massachusetts Green High Performance Computing Center</institution> </institution-wrap>, operated by <institution-wrap> <institution-id institution-id-type="Ringgold">1846</institution-id> <institution-id institution-id-type="ISNI">0000 0001 2170 1429</institution-id> <institution content-type="university">Boston University</institution> </institution-wrap>, <institution-wrap> <institution-id institution-id-type="Ringgold">1812</institution-id> <institution content-type="university">Harvard University</institution> </institution-wrap>, <institution-wrap> <institution-id institution-id-type="Ringgold">2167</institution-id> <institution content-type="university">MIT</institution> </institution-wrap>, <institution-wrap> <institution-id institution-id-type="Ringgold">1848</institution-id> <institution content-type="university">Northeastern University</institution> </institution-wrap>, and the <institution-wrap> <institution-id institution-id-type="Ringgold">14707</institution-id> <institution content-type="university">University of Massachusetts</institution> </institution-wrap> </funding-source> </award-group> </funding-group> ...