BibFormats

654  Subject Added Entry--Faceted Topical Terms (R)

Record Type

BIB

Input Standards
Field (Full/Minimal)
Optional/Optional
1st Indicator  Level of subject
blank character No information provided
0 No level specified
1 Primary
2 Secondary
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards (Full/Minimal)
ǂa Focus term (R) Required if applicable/Required if applicable
ǂb Non-focus term (R) Required if applicable/Required if applicable
ǂc Facet/hierarchy designation (R) Mandatory/Mandatory
ǂe Relator term (R) Optional/Optional
ǂv Form subdivision (R) Required if applicable/Required if applicable
ǂy Chronological subdivision (R) Required if applicable/Required if applicable
ǂz Geographic subdivision (R) Required if applicable/Required if applicable
ǂ0 Authority record control number or standard number (R) Optional/Optional
ǂ1 Real World Object URI (R) Optional/Optional
ǂ2 Source of heading or term (NR) Mandatory/Mandatory
ǂ3 Materials specified (NR) Optional/Optional
ǂ4 Relationship (R) Optional/Optional
ǂ6 Linkage (NR) System supplied/System supplied
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

A topical subject constructed from a faceted vocabulary (e.g., the Art and Architecture Thesaurus [AAT]).

1st Indicator

Level of subject. The level of the subject entry. Use the 1st indicator to distinguish primary and secondary descriptors.
 
blank character

No information provided. No information as to the level of the subject term is provided.

654     ǂc r ǂa country houses ǂc z ǂb Great Britain ǂc y ǂb 18th century. ǂ2 aat
[Access point: country houses-Great Britain-18th century]
 
0

No level specified. The level of the subject term could be determined, but is not specified.

654 0   ǂc r ǂa landscape gardens ǂy 18th century ǂc z ǂb England. ǂ2 aat
[Access point: landscape gardens-18th century-England]
 
1

Primary. A subject covers the main focus or subject content of the material.

654 1   ǂc k ǂa interior design. ǂ2 aat
[Access point: interior design]
 
2

Secondary. A subject covers a less important aspect of the content of the material.

654 2   ǂc r ǂa housing. ǂ2 aat
[Access point: housing]

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

blank character Undefined

Subfields

  
ǂa Focus term

A term which is considered the focus term. A focus term is the activity, being, object, or concept forming the basis of the index entry. Repeat subfield ǂa when there is more than one expression in the field.

654     ǂc f ǂb Romanesque ǂc m ǂb stone ǂc r ǂa churches ǂc k ǂa renovation. ǂ2 aat
[Access point: Romanesque stone churches-renovation]
ǂb Non-focus term

A term other than the focus term.

654     ǂc m ǂb charcoal ǂc v ǂa drawings ǂc z ǂb Great Britain ǂc y ǂb 18th century. ǂ2 aat
[Access point: charcoal drawings-Great Britain-18th century]
ǂc Facet/hierarchy designation

A designation identifying the facet/hierarchy designation for each term found in subfields ǂa and ǂb. The designations and their associated facets/hierarchies are found in the thesaurus identified in subfield ǂ2. Data in subfield ǂc always precedes the data to which it is associated.

654     ǂc d ǂb blue ǂc f ǂb Baroque ǂc t ǂa pitchers. ǂ2 aat
[Access point: blue Baroque pitchers]
ǂe Relator term

Contains the term that indicates the relationship between the faceted topical term used as a subject added entry and the described materials.
ǂv Form subdivision

A specific kind or genre of material defined by the thesaurus being used. Use only when a form subject subdivision is added to a faceted topical term. Use subfield ǂv also for form terms when they function as indicated above. Use subfield ǂx if the terms function as general subdivisions. A form subdivision in subfield ǂv is generally the last subfield in the field. Repeat subfield ǂv if you use more than one form subdivision.

654     ǂc v ǂa photographs ǂc v ǂv Platinum prints. ǂ2 aat
[Access point: photographs-Platinum prints]
ǂy Chronological subdivision

A subject subdivision that represents a period of time. Use only when a chronological subject subdivision is added to a main term.

654 0   ǂc r ǂa landscape ǂy 18th century ǂz England. ǂ2 aat
[Access point: landscape-18th century-England]
ǂz Geographic subdivision

A geographic subject subdivision. Use only when a geographic subject subdivision is added to a main term.

654     ǂc f ǂb Aegean--Late Minoan ǂc t ǂa houses ǂc z ǂz Greece ǂz Crete ǂc t ǂv Models. ǂ2 aat
[Access point: Aegean--Late Minoan houses-Greece-Crete-Models]
ǂ0 Authority record control number or standard number

For information about subfield ǂ0, see Control Subfields.
ǂ1 Real World Object URI

For information about subfield ǂ1, see Control Subfields.
ǂ2 Source of heading or term

A MARC code that identifies the source list from which the heading in a subject added entry was assigned. See Subject Heading and Term Source Codes.

654     ǂc v ǂa bibliographies. ǂ2 aat
[Access point: bibliographies]
ǂ3 Materials specified

For information about subfield ǂ3, see Control Subfields.

654     ǂ3 business letters ǂc r ǂa housing ǂc z ǂb United States. ǂ2 aat
[Access point: business letters: housing-United States]
ǂ4 Relationship

For information about subfield ǂ4, see Control Subfields.
ǂ6 Linkage

Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields.
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 654.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 654.

This page last updated: 2024-03-13 · Report an error in WorldCat · Submit a suggestion for this page · Get help with general cataloging questions