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<index> Index

<index> is a wrapper element used to encode key terms and reference pointers which enhance access to the described materials or a helpful alphabetical overview of subjects, correspondents, photographers, or other entities represented in the collection. It may include links to further information or container numbers where the information about this specific topic/person/etc. may be found.

<index> may repeat terms and names found elsewhere in the finding aid or may clarify a perviously unnamed term or entity. For example, a folder heading may be titled “Dalek to Judoon” and names for each species profiled in said folder, such as “Futurekind,” may be listed in the index. It should contain <indexentry> elements which contain the actual data, consisting of an access element such as <name> or <subject>, followed by <ptr>, <ptrgrp>, or <ref>.

<index> is one of the elements which may be used within <archdesc>, <archdescgrp>, <c>, <c01> through <c12>, and <descgrp>.


  • ALTRENDER – not required. Use if the content of the element should be displayed or printed differently than the rendering established in a style sheet for other occurrences of the element.
  • AUDIENCE – not required. Use to set whether the element’s contents will be visible to external users or to internal ones. Possible values are: “internal” and “external.”
  • ID – not required. Creates an ID for element. Can be used for linking.
  • ENCODINGANALOG – not required. May contain information to map this tag to a particular element in another schema.


Besides containing other <index> elements, <index> may contain: <address>, <blockquote>, <chronlist>, <head>, <index>, <indexentry>, <list>, <listhead>, <note>, <p>, and <table>.


A sample index:

	<head>Index of Classified Alien Species</head>
	<p>Names of alien species classified in UNIT dossiers. Species are listed alphabetically and linked to the folder in which their dossier may be found. Because of the classified nature of these records, no name authorities exist.</p>
		<ref linktype="simple" target="FAtoC" show="replace" actuate="onrequest">Folder A-C</ref>
			<name>Family of Blood</name>
		<ref linktype="simple" target="FDtoJ" show="replace" actuate="onrequest">Folder D-J</ref>
			<name>Star whale</name>
		<ref linktype="simple" target="FKtoS" show="replace" actuate="onrequest">Folder K-S</ref>
			<name>Time Lord</name>
			<name>Vashta Nerada</name>
			<name>Weeping Angels</name>
		<ref linktype="simple" target="FTtoZ" show="replace" actuate="onrequest">Folder T-Z</ref>

EAD tag library entry for <index>.