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  2. Explanatory Notes to the List of JPCOAR Schema Terms

Subject

Element

jpcoar:subject
Usage:
MA (Mandatory when applicable)
Occurrence:
0-N (Repeatable: expect mandatory term)

Attribute

subjectScheme
Usage:
M (Mandatory)
Occurrence:
1 (Non-repeatable: mandatory term)
Controlled Vocabularies
  • BSH
    -
    Basic Subject Headings
  • DDC
    -
    Dewey Decimal Classification
  • LCC
    -
    Library of Congress Classification
  • LCSH
    -
    Library of Congress Subject Headings
  • MeSH
    -
    Medical Subject Headings
  • NDC
    -
    Nippon Decimal Classification
  • NDLC
    -
    National Diet Library Classification
  • NDLSH
    -
    National Diet Library Subject Headings
  • SciVal
    -
    Elsevier SciVal Subject Classification
  • UDC
    -
    Universal Decimal Classification
  • Other
    -
subjectURI
Usage:
MA (Mandatory when applicable)
Occurrence:
0-1 (Non-repeatable: except mandatory term)
xml:lang
Usage:
MA (Mandatory when applicable)
Occurrence:
0-1 (Non-repeatable: except mandatory term)

Usage Instructions

  • Enter the subjects, author keywords or classifications describing the resource. For classifications, enter the codes only.
  • For 'subjectScheme', use the controlled vocabularies.
  • For 'subjectURI', enter the ID value in a HTTP URI format. If there is no URI, do not specify 'subjectURI' (e.g. https://id.ndl.go.jp/auth/ndlsh/00575529).

Notes

  • Do not enter the term name for classifications.
  • For author keywords, specify 'Other' in 'subjectScheme'.
  • There is no limit for the occurrence of each language code in 'jpcoar:subject' and it can be entered repeatedly.

Recommended Examples

  • Example of author keywords
<jpcoar:subject xml:lang="ja" subjectScheme="Other">情報化社会</jpcoar:subject>
  • Example of 'yomi' descriptions
<jpcoar:subject xml:lang="ja-Kana" subjectScheme="Other">ジョウホウカ シャカイ</jpcoar:subject>
  • Example of classification codes
<jpcoar:subject subjectScheme="NDC">007</jpcoar:subject>
  • Example of subject names
<jpcoar:subject xml:lang="ja" 
    subjectScheme="NDLSH" subjectURI="https://id.ndl.go.jp/auth/ndlsh/01009109">
    社会情報学
</jpcoar:subject>

junii2 mapping

  • BSH
  • DDC
  • LCC
  • LCSH
  • MeSH
  • NDC
  • NDLC
  • NDLSH
  • UDC
  • NIIsubject
  • subject