Encoded Archival Description Tag Library, Version 2002
EAD Elements
<unitid> ID of the Unit
Description:
Any alpha-numeric text string that serves as a unique reference point or control number for the described material, such as a lot number, an accession number, a classification number, or an entry number in a bibliography or catalog. An important subelement of the Descriptive Identification < did>, the <unitid> is primarily a logical designation, which sometimes secondarily provides location information, as in the case of a classification number. Use other <did> subelements, such as <physloc> and <container>, to designate specifically the physical location of the described materials.
Do not confuse <unitid>, which relates to the archival materials, with <eadid>, which is used to designate a unique identification string for the finding aid.
Although not required, the COUNTRYCODE and REPOSITORYCODE attributes should be used in < unitid> at the <archdesc><did> level to comply with ISAD(G) element 3.1.1. REPOSITORYCODE specifies the ISO 15511 code for the institution that has custody of the materials described, while COUNTRYCODE provides the ISO 3166-1 code for the country in which that institution is located. IDENTIFIER should contain a machine-readable unique identifier, containing a value similar to the text in the <unitid> element. The TYPE attribute may be used to indicate the system from which the <unitid> was derived, e.g., accessioning system, record group classification scheme, records retention scheduling system, etc.
May contain:
#PCDATA, abbr, archref, bibref, emph, expan, extptr, extref, lb, linkgrp, ptr, ref, title
May occur within:
archref, did
Attributes:
| ALTRENDER | #IMPLIED, CDATA |
| AUDIENCE | #IMPLIED, external, internal |
| COUNTRYCODE | #IMPLIED, NMTOKEN |
| ENCODINGANALOG | #IMPLIED, CDATA |
| ID | #IMPLIED, ID |
| IDENTIFIER | #IMPLIED, CDATA |
| LABEL | #IMPLIED, CDATA |
| REPOSITORYCODE | #IMPLIED, NMTOKEN |
| TYPE | #IMPLIED, CDATA |
Example:
<archdesc level="collection">
<did>
<head>Descriptive Summary</head>
<unittitle label="Title">Donald C. Stone, Jr. Papers, </unittitle>
<unitdate type="inclusive">1971-1983</unitdate>
<unitid countrycode="us" repositorycode="cbgtu" label="Accession number">
GTU 2001-8-03</unitid>
<origination label="Creator">
<persname source="lcnaf">
Stone, Donald C., Jr.
</persname>
</origination>
<physdesc label="Extent"><extent>4 boxes, </extent><extent>4
linear ft.</extent> </physdesc>
<repository label="Repository">
The <corpname>Graduate Theological Union</corpname>
<address><addressline>Berkeley, California</addressline></address>
</repository>
<abstract label="Abstract">The papers document Donald C. Stone's work with
Ornstein and Swencionis on the <emph render="italic">est</emph> Outcome
Project, and the development of his doctoral research, including his various
publications on the human potential movement, up to the completion of his doctoral
dissertation.</abstract>
<physloc label="Shelf location">5/D/4-5</physloc>
</did> . . .
</archdesc>