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Subject Heading/DDC Mappings. Based on likelihood of use of heading with numberNo explicit definition of relationship beyond concurrent use. Dewey Numbers in Subject Heading Authority Records. Subject entity represented by heading approximates the whole of the DDC class or is in standing room Def
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1. Dewey Numbers in Authority Files Joan S. Mitchell
Editor in Chief, DDC
OCLC
Dewey Translators Meeting
23 August 2006
IFLA World Library and Information Congress 2006
Seoul
2. Subject Heading/DDC Mappings Based on likelihood of use of heading with number
No explicit definition of relationship beyond concurrent use
3. Dewey Numbers in Subject Heading Authority Records Subject entity represented by heading approximates the whole of the DDC class or is in standing room
Definition of relationship between heading and number is found in Dewey number record
4. Guidelinesfor Inclusion of LCC in LCSH(H365) Caption for number identical/nearly identical in scope
Topic explicitly mentioned in Including note
Topic belongs to category for which it is LC policy to classify works at number broader than subject heading
5. Proposed General Guidelines for DDC in LCSH Subject entity represented by LCSH approximates whole of DDC class
Subject entity represented by LCSH is explicitly in standing room at the number (see geographic and biological exceptions)
Geographic area is implicitly in standing room at the number
Genus/species is implicitly in standing room at the number
6. Example 1-1: Approximates the Whole 150 ## $aEducation
083 00 $a370
180 ## $aEducation
083 00 $z1$a071
“Education” is caption at 370 Education and T1—071 Education
7. Example 1-2: Approximates the Whole 150 ## $aSociology in literature
083 00 $z3C$a3552
“Sociology” is in caption at T3C—3552 Sociology and anthropology; standard subdivisions added for either or both topics in heading
150 ## $aEmotional intelligence
083 00 $a152.4
“Emotional intelligence” is in class-here note under 152.4 Emotions
8. Example 1-3: Approximates the Whole 150 ## $aKhoisan (African people)
083 00 $z5$a961
“Khoisan (African people)” is index term at T5—961 Khoikhoi and San and approximates whole of class
9. Example 2-1: Explicitly in Standing Room 150 ## $aViolence in literature
083 00 $z3C$a3552
“Violence” is in including note at T3C—3552
10. Example 2-2: Explicitly in Standing Room 150 ## $Pipil language
083 00 $z6$a97452
“Pipil language” (a specific Aztecan language) is index term at T6—97452 Aztecan languages
11. Example 3: Geographic Exception 151 ## $aGarrett County (Md.)
083 00 $z2$a75297
“Garrett County” is caption at T2—75297
151 ## $aOakland (Garrett County, Md.)
083 00 $z2$a75297
“Oakland” not mentioned in record, but city in Garrett County
12. Example 4: Multiple Numbers Added to Record 151 ## $aCookies
083 00 $a641.8654
083 00 $a664.7525
13. Example 5: No Number Added to Record 150 ## $aBohemianism in literature
Mapped to T3C—3552, but “Bohemianism” not explicitly in record or index entries for T3C—3552
14. Discussion Are the guidelines generalizable to other subject heading systems?
Do we need additional definitions of relationships within Dewey records?