◇◆
<subj-group> Subject Group
Container element for the subject matter designations describing a document’s content
or a document component’s content. Subjects are used to organize documents into groupings
(potentially hierarchical groupings) for display or print.
Usage/Remarks
Subjects (and groupings of subjects) are used, typically, to provide headings for
groups of documents or document components in a printed, or online, generated Table
of
Contents.
In some journals, articles are grouped into categories which this Tag Set calls
<subject>s, which may be grouped into
<subj-group>s. Similarly, a book may use this
mechanism to group <book-part>s. These subject categories are
typically shown in the Table of Contents, at the top of the first print or display
page,
or on the web splash page for the work. Sometimes the grouping or category refers
to the
type of content, such as “Essay”,
“Lesson”, “Award”, or “Unit”. Sometimes
the grouping refers to subject areas, such as “Physical Sciences”,
“Biological Sciences”, or “Social Sciences”. Sometimes the
grouping refers to topics within the larger subject areas, such as “Applied
Math”, “Biology”, or “Chemistry”. For example, a
one-level grouping might be:
<subj-group> <subject>Notation</subject> </subj-group>
or, as another example:
<subj-group> <subject>Magnetic Resonance</subject> </subj-group>
And a four-level grouping might be:
<subj-group subj-group-type="keywords">
<subject>Biological Sciences</subject>
<subj-group subj-group-type="keywords">
<subject>Neuroscience</subject>
<subj-group subj-group-type="keywords">
<subject>Cellular and Molecular Biology</subject>
<subj-group subj-group-type="keywords">
<subject>Blood–brain barrier</subject>
</subj-group>
</subj-group>
</subj-group>
</subj-group>
Books and book parts may be assigned to more than one grouping. For example, if a
chapter is
classified as “Biochemistry” under “Biological Sciences” and
“Chemistry” under “Physical Sciences”, the <subj-group> container element may repeat. For example:
<subj-group> <subject>Chemical Disciplines</subject> <subj-group> <subject>Biological Sciences</subject> <subj-group> <subject>Biochemistry</subject> </subj-group> </subj-group> <subj-group> <subject>Physical Sciences</subject> <subj-group> <subject>Chemistry</subject> </subj-group> </subj-group> </subj-group>
Attribute Best Practice
If the content of the <subj-group> element is a term from a thesaurus, ontology, term-list, vocabulary, industry glossary
or other known source, the vocabulary attributes should be used to record that source.
This source can be a formal ontology or an informal field of study. Two attributes
are used in this Tag Set to identify such a controlled or uncontrolled vocabulary:
|
vocab
|
Name of the controlled or uncontrolled vocabulary, taxonomy, ontology, index, database,
or similar that is the source of the term. For example, for a subject term, a value
might be the IPC Codes (“ipc”) or MESH headings
(“mesh”). For an uncontrolled term, the value might be
an area of study such as “medical-devices” or merely the word “uncontrolled”.
|
|---|---|
|
vocab-identifier
|
Unique identifier of the vocabulary, such as (but not limited to) a URI or DOI. For
example, for Dublin Core (DCC), the identifier might be “http://dublincore.org/documents/2012/06/14/dces/”.
|
Attributes
Models and Context
May be contained in
Description
The following, in order:
- One or more of any of:
- <subj-group> Subject Group, zero or more
Content Model
<!ELEMENT subj-group %subj-group-model; >
Expanded Content Model
((subject | compound-subject)+, subj-group*)
Tagged Samples
Organization groupings for a chapter
<book dtd-version="2.1">
<book-meta>...</book-meta>
<front-matter>...</front-matter>
<book-body>
<book-part id="bid.2" book-part-type="chapter">
<book-part-meta>
<subj-group>
<subject>Physical Sciences</subject>
<subj-group>
<subject>Introductory Chemistry</subject>
<subject>Organic Chemistry</subject>
<subject>Physical Chemistry</subject>
</subj-group>
</subj-group>
<subj-group>
<subject>Biological Sciences</subject>
<subj-group>
<subject>Biochemistry</subject>
</subj-group>
</subj-group>
<title-group>
<label>1</label>
<title>GenBank: The Nucleotide Sequence Database</title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name><surname>Mizrachi</surname>
<given-names>Ilene</given-names></name>
</contrib>
</contrib-group>
<pub-history>...</pub-history>
</book-part-meta>
<body>
<sec id="bid.3">...</sec>
</body>
<back>...</back>
</book-part>
</book-body>
</book>Subject categorizations
...
<book-part id="bid.12" book-part-type="chapter">
<book-part-meta>
<subj-group>
<subject>ISO/TC 43</subject>
<subj-group>
<subject>SC 1, Noise</subject>
</subj-group>
</subj-group>
</book-part-meta>
<body>...</body>
</book-part>
...
...
<book-part-meta>
<subj-group subj-group-type="kwd">
<subject content-type="neurosci">Cellular and Molecular
Biology</subject>
<subj-group>
<subject content-type="neurosci">Blood–brain
barrier</subject>
</subj-group>
</subj-group>
</book-part-meta>
...Table of Contents grouping
...
<book-part id="bid.1" book-part-type="part">
<book-part-meta>
<subj-group subj-group-type="toc-heading">
<subject>PAPERS</subject>
<subj-group>
<subject>Structural, Mechanical, Thermodynamic, and Optical
Properties of Condensed Matter</subject>
</subj-group>
</subj-group>
</book-part-meta>
<body>...</body>
</book-part>
...One article, many subject groups
...
<book-part id="bid.8" book-part-type="chapter">
<book-part-meta>
<subj-group>
<subject>Legal Reform</subject>
<subj-group>
<subject>Federal Court Decisions</subject>
<subj-group>
<subject>Supreme Court Opinions</subject>
<subj-group>
<subject>Criminal Procedure</subject>
<subj-group>
<subject>Fourth Amendment: Search and Seizure</subject>
<subj-group>
<subject>Vehicle Passenger Rights: <italic>Brendlin v.
California</italic></subject>
</subj-group>
</subj-group>
</subj-group>
</subj-group>
<subj-group>
<subject>4th Circuit Decisions</subject>
<subj-group>
<subject>Habeas Corpus</subject>
<subj-group>
<subject>Detaining U.S. Residents: <italic>Al-Marri v.
Wright</italic></subject>
</subj-group>
</subj-group>
</subj-group>
</subj-group>
<subj-group>
<subject>Federal Law</subject>
<subj-group>
<subject>Changes to FISA Surveillance: Protect America Act of
2007</subject>
</subj-group>
</subj-group>
<subj-group>
<subject>Ethical Guidelines</subject>
<subj-group>
<subject>Protecting Client Confidences</subject>
<subj-group>
<subject>Potential for Identity Theft in Pleadings and
Filings</subject>
<subj-group>
<subject>Drivers License Numbers</subject>
</subj-group>
<subj-group>
<subject>Social Security Numbers</subject>
</subj-group>
</subj-group>
</subj-group>
</subj-group>
</subj-group>
</book-part-meta>
<body>...</body>
</book-part>
...Subject associated with a vocabulary
Subject from Dewey Decimal showing the canonical term in the @vocab-term attribute and its translation in the %lt;subject> content. (Note: “Engineering of railroads, roads” is a DDC term, not free text.)
...
<subj-group id="DDC-ex1" xml:lang="en"
vocab="DDC"
vocab-identifier="DDC23">
<subject id="DCC-625"
vocab-term="Engineering of railroads, roads"
vocab-term-identifier=
"http://www.oclc.org/en/dewey/features/summaries.html#thou">
Ingénierie des chemins de fer, routes</subject>
</subj-group>
...