Top Level Element: <identifier>

Definition	A unique standard number or code that is associated with the <authority>
Attributes	type, displayLabel, invalid, lang, xml:lang, script, transliteration, ID, xlink
Subelements	None

Guidelines for Use

The <authority> may have different types of identifiers. For instance, a name/title entity might have a work identifier; a personal name entity might have a person identifier.

Repeat the <identifier> element for each applicable identifier recorded, including invalid and canceled identifiers.

This element is optional and repeatable.

Element Description

Attributes

type

Definition

Optionally, indicates the type of identifier that is recorded.

Application

Suggested values include, but are not limited to, those specified in Standard Identifier Source Codes. An example of an identifier type appropriate for a MADS record is "istc", referring to the International Standard Text Code.

displayLabel

Definition

Additional text associated with the <identifier> if needed for display purposes.

Application

A typical use would be to indicate the prefix for display of the type of code, e.g. ISTC. Include preferred text and capitalization but not delimiters such as colons.

invalid

Definition

Signifies a canceled or invalid identifier.

Application

The invalid attribute should be used with the following value:

yes – This value is used only when recording a canceled or invalid identifier. If invalid="yes" is not present, the identifier is assumed to be valid. Do not use invalid="no."

lang, xml:lang, script, transliteration, ID, xlink

See Attributes Used Throughout the MADS Schema for a description of each of these attributes.

Subelements

There are no subelements for <identifier>.

MARC Mapping

<identifier> = MARC 21 Authority field 024 subfield a

<identifier invalid="yes"> = MARC 21 Authority field 024 subfield z

<identifier type="content of subfield"> = MARC 21 Authority field 024 subfield 2

<identifier type="lccn"> = MARC 21 Authority field 010 subfield a

<identifier type="lccn" invalid="yes"> = MARC 21 Authority field 010 subfield z

Top

EXAMPLES

Personal Name

<authority>

<geographic authority="lcsh">Wad Cave (Israel)</geographic>

</authority>

<identifier type="lccn">sh 00005051</identifier>

<authority>

<name type="personal">

<namePart>Rendell, Ruth</namePart>

<namePart type="date">1930- </namePart>

</name>

</authority>

<identifier type="isni">8462832856536435</identifier>

<authority>

<name type="personal" authority="naf" >

<namePart>Farrukhzād, Furūgh</namePart>

</name>

</authority>

<identifier type="lccn">n 82004362 </identifier>

<identifier type="lccn" invalid="yes">n 2005200471 </identifier>

Last Updated: April 11, 2012