Definition |
A term indicating the form, genre, and/or physical characteristics of the materials being described. Genre terms for textual materials designate specific kinds of materials distinguished by the style or technique of their intellectual content (e.g., biographies, catechisms, essays, hymns, or reviews). |
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Form and physical characteristic terms designate functionally and historically specific kinds of materials. Distinguish terms by an examination of the physical character, by the order of information within the item, or by the subject of the intellectual content (e.g., daybooks, diaries, directories, journals, memoranda, questionnaires, syllabi, or time sheets). Use field 655 for terms constructed from a faceted vocabulary. For each term in the field, give an identification as to the facet/hierarchy from the thesaurus used. In addition, give an identification as to which term is the focus term of the expression. For information about FAST (Faceted Application of Subject Terminology) subject access points, see 6xx Introduction. |
1st Indicator |
Type of heading. The type of heading in the field. |
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Basic. The genre/form data is recorded in a single occurrence of subfield ǂa. |
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| 0 |
Faceted. Each genre/form term is recorded in a separate subfield ǂa or subfield ǂb. A subfield ǂc precedes each term in subfields ǂa and ǂb. Subfield ǂc denotes the facet/hierarchy of each term in a particular thesaurus. |
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2nd Indicator |
Thesaurus. The thesaurus or subject heading system used in constructing the genre or form term. Note: The previous practice for indicating the source of a genre heading was to use 2nd indicator value 7 and identify the MARC code for the source list in subfield ǂ2. Under current practice, in addition to value 7, specific thesauri are now identified with 2nd indicator values. Prefer use of 2nd indicator values 0, 1, 2, 3, 5, or 6 when codes lcsh, cyac (formerly lcac), mesh, nal, cash, or rvm in subfield ǂ2 would convey the same information. Prefer use of 2nd indicator value 4 instead of value 7 and subfield ǂ2 local. |
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| 0 |
Library of Congress Subject Headings. The formulation of the genre or form term conforms to the Library of Congress Subject Headings (LCSH). |
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| 1 |
LC subject heading for children's literature. The formulation of the subject added entry conforms to the "Children's and Young Adults' Cataloging Program" (CYAC) section of Library of Congress Subject Headings. Use of value 1 requires that the added entry is appropriate for use in the Children's and Young Adults' Cataloging Program. |
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| 2 |
Medical Subject Headings. The formulation of the genre or form term conforms to the National Library of Medicine (NLM) authority files. |
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| 3 |
National Agricultural Library subject authority file. The formulation of the genre or form term conforms to the National Agricultural Library (NAL) subject authority file. |
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| 4 |
Source not specified. The formulation of the genre or form term conforms to a controlled list, but the source cannot be specified by one of the thesaurus or subject heading systems covered by the other 2nd indicator values or by a code for a specific subject heading list in subfield ǂ2. |
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| 5 |
Canadian Subject Headings. The formulation of the genre or form term conforms to the Canadian Subject Headings maintained by Library and Archives Canada. |
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| 6 |
Répertoire de vedettes-matière. The formulation of the genre or form term conforms to the Répertoire de vedettes-matière maintained by the Bibliothèque de l'Université de Laval. |
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| 7 |
Source is specified in subfield ǂ2 . Genre or form terms based on other subject authorities (i.e., on authorities other than those listed here). Identify the source in subfield ǂ2. |
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Subfields |
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| ǂa Genre/form data or focus term |
For basic headings, subfield ǂa consists of all form, genre, and physical characteristics data when the 1st indicator value is blank. For faceted headings, subfield ǂa consists of the focus term when the 1st indicator value is 0. A focus term is the specific object forming the basis of expression.
| 655 |
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5 |
Horror plays, Canadian (English) |
| 655 |
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7 |
Dessins animés télévisés ǂ2 rvmgf |
| 655 |
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7 |
exhibition catalogs ǂ2 aat |
| 655 |
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7 |
Gampi fibers (Paper) ǂz Japan ǂy 1955 ǂ2 rbpap |
| 655 |
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7 |
Medical novels ǂ2 gsafd |
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| ǂb Non-focus term |
A term other than that considered the focus in the faceted heading. Use with 1st indicator value 0.
| 655 |
0 |
7 |
ǂc d ǂb black (color) ǂc f ǂb Hmong (culture or style) ǂc m ǂb cotton (textile) ǂc k ǂb courtships ǂc t ǂa balls (object genres) ǂ2 aat |
| [Object described: Black Hmong cotton courtship balls] |
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| ǂc Facet/hierarchy designation |
A designation identifying the facet/hierarchy designation for each term found in subfields ǂa and ǂb. Use with 1st indicator value 0. 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.
| 655 |
0 |
7 |
ǂc k ǂb laminate ǂc m ǂb marblewood (wood) ǂc v ǂa busts (sculpture) ǂ2 aat |
| [Object described: Laminated marblewood bust] |
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| 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 genre/form term. 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.
| LTxt |
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a |
| 655 |
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4 |
Audiobooks ǂv Biography |
| LitF |
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0 |
| 655 |
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4 |
Fables ǂv Adaptations |
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| ǂx General subdivision |
A subject subdivision that is not more appropriately contained in subfield ǂv, ǂy, or ǂz. Use subfield ǂx only when a topical subdivision is added to a genre/form term with a 1st indicator value of blank.
| 655 |
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7 |
Dictionaries ǂx French ǂy 18th century ǂ2 rbgenr |
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| ǂy Chronological subdivision |
A subject subdivision that represents a period of time. Use only when a chronological subject subdivision is added to a term.
| 655 |
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7 |
Competition drawings ǂy 1984 ǂ2 rbgenr |
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| ǂz Geographic subdivision |
A geographic subject subdivision. Use only when a geographic subject subdivision is added to a main term.
| 655 |
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4 |
Fan magazines ǂz United States ǂy 20th century |
| 655 |
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7 |
Signing patterns (Printing) ǂz Germany ǂy 18th century ǂ2 rbpri |
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| 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 term |
A MARC code that identifies the source list from which the index term was assigned. Use only when the 2nd indicator value is 7. See Genre/Form Code and Term Source Codes . For information about subfield ǂ2, see Control Subfields.
| 655 |
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7 |
Lithographs ǂz Germany ǂy 1902 ǂ2 gmgpc |
| 655 |
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7 |
Native American newspapers ǂz Washington (State) ǂ2 ngl |
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| ǂ3 Materials specified |
For information about subfield ǂ3, see Control Subfields.
| 655 |
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7 |
ǂ3 Accompanying DVD: ǂa Oral histories ǂ2 lcgft |
| 655 |
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7 |
ǂ3 Portraits of Eri B. Hulbert and Mary Louisa Hulbert: ǂa Photoprints ǂ2 gmgpc |
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| ǂ5 Institution to which field applies |
For information about subfield ǂ5, see Control Subfields.
| 655 |
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7 |
Annotations (Provenance) ǂz Sweden ǂy 18th century ǂ2 rbprov ǂ5 MH-H |
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| 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. |
| ǂ7 Data provenance |
For information about subfield ǂ7, see Data Provenance 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 655. |
MARC 21 |
For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 655. |
