<did> is the only required element in <archdesc> and <c> (or <c01>, etc.). It is used to bundle other elements identifying core information about the described materials. These elements should constitute a good basic description of the archival unit. The <did> in <archdesc> is called a high-level <did>. The <did> within <c>-type elements is referred to as a low-level <did>. These terms may be used when discussing levels of description.
<did> can only be used in <archdesc>, <c>, and <c01>, <c02>, … , <c12>.
Attributes
- @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.”
- @encodinganalog – not required. May contain information to map this tag to a particular element in another schema.
- @id – not required. Creates an ID for element. Can be used for linking.
- @lang – not required. Three-letter code that indicates the language in which the element’s contents were written. It should come from ISO 639-2b.
- @script – not required. Four-letter code that indicates the script in which the element’s contents were written. It should come from ISO 15924.
Child Elements
Because it must be used within <archdesc> and <c>, which have different needs, there are no required child elements inside <did>.
<did> may contain an optional <head> element. It must contain one or more of the following: <abstract>, <container> (which is not used in high level <did>), <dao>, <daoset>, <didnote>, <langmaterial>, <materialspec>, <origination>, <physdescset>, <physdesc>, <physdescstructured>, <physloc>, <repository>, <unitdate>, <unitdatestructured>, <unitid>, and <unittitle>.
Examples
This is a <c>-level <did>.
<did> <unittitle>Department Minutes</unittitle> <unitdatestructured unitdatetype="inclusive"> <dateset> <daterange> <fromdate standarddate="1978">1978</fromdate> <todate standarddate="1982">1983</todate> </daterange> <datesingle standarddate="1985">1985</datesingle> <daterange> <fromdate standarddate="1987">1987</fromdate> <todate standarddate="2020">2020</todate> </daterange> </dateset> </unitdatestructured> <container containerid="9095822543098" localtype="box">1</container> <container containerid="9095822543099" localtype="box">2</container> <container containerid="9095822543100" localtype="box">3</container> <container containerid="9095822543101" localtype="box">4</container> <container containerid="9095822543102" localtype="box">5</container> <container containerid="9095822543103" localtype="box">6</container> <physdescset parallel="false" coverage="whole"> <physdescstructured coverage="part" physdescstructuredtype="carrier"> <quantity>6</quantity> <unittype>boxes</unittype> </physdescstructured> <physdescstructured coverage="part" physdescstructuredtype="materialtype"> <quantity>143</quantity> <unittype>electronic files</unittype> </physdescstructured> </physdescset> <abstract>Regular department meetings are held in September-December and February-April of each school year. Some years include minutes of additional meetings. Minutes for the years 1983 and 1986 were not retained by anyone in the department.</abstract> </did> |
<did> <unittitle>Grants</unittitle> <unitdatestructured unitdatetype="inclusive"> <daterange> <fromdate standarddate="1978">1978</fromdate> </daterange> </unitdatestructured> <physdescstructured coverage="whole" physdescstructuredtype="carrier"> <quantity>17</quantity> <unittype>boxes</unittype> </physdescstructured> </did> |
Changes from EAD 2002
<did> gained attributes @lang and @script. Deprecated element <daogrp> was replaced by <daoset> and deprecated <note> by <didnote>. It gained new elements <physdescset>, <physdescstructured>, and <unitdatestructured>.