<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.
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>
Attributes
Content Model
<!ELEMENT subj-group %subj-group-model; >
Expanded Content Model
((subject | compound-subject)+, subj-group*)
Description
The following, in order:
- One or more of any of:
- <subj-group> Subject Group, zero or more
This element may be contained in:
Example 1
Organization groupings for a chapter:
<book dtd-version="2.0">
<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>
Example 2
Subjects that are similar to keywords:
...
<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>
... Example 3
Subjects for a 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>
...Example 4
A single chapter may belong to 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>
...