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<extended-by> Extended-by Model

Identification of a JATS extension that the document claims to be following.

Usage/Remarks

The <extended-by> element names a JATS extension or superset that the document claims to be following. The content of <extended-by> may be a name, such as “taxpub”, or a URI. The element is repeatable so that more than one extension can be claimed.
Processing Metadata
To provide a more complete in-the-XML description of the tag set associated with a document, JATS 1.3 added a Processing Metadata element (<processing-meta>). A <processing-meta> names (through attributes) the tag set, table model, and MathML options a document follows and (through elements) some of the modeling restrictions or extensions the document claims to follow.
Processing Metadata is not considered to be part of the content of an article, or part of the metadata for citing an article; it is metadata about how the XML is constructed — not about how the article is structured. This metadata is information at the “file level” and thus not part of <article-meta>, but inside the article as a peer to <front>, which is the article and journal metadata container in JATS.
  • New processing metadata container element (<processing-meta>) was added to the model of <article> as a child element, the peer of <front>.
  • The elements inside <processing-meta> name tag set extensions (superset) and restrictions (subset, secondary schema, etc.) that the XML document claims to follow.
  • The attributes on <processing-meta> describe the modeling choices made by this document in terms of tag set family, base tag set, table model, and math tagging.

<processing-meta>

This optional container element is used to hold the processing metadata elements, which describe processing information descriptive of the XML-tagged document (document instance). The <processing-meta> element contains the following elements:
  • <restricted-by> — Identification of one of the guidelines or other restrictions (such as a tighter subset schema) the document claims to be following. The content of <restricted-by> may be a name such as “jats4r” or “pmc”, or a URI, for example, the URL of a particular JATS4R recommendation. The element is repeatable so that multiple restrictions can be claimed.
  • <extended-by> — Identification of a JATS extension or superset that the document claims to be following. The content of <extended-by> may be a name, such as “taxpub”, or a URI. The element is repeatable so that more than one extension can be claimed.
  • <custom-meta-group> — To hold other processing metadata a JATS user might want to express in the XML file.
Attributes
assigning-authority
designator
hreflang
vocab
vocab-identifier
vocab-term
vocab-term-identifier

Base Attributes

id
xml:base

Linking Attributes

xlink:actuate
xlink:href
xlink:role
xlink:show
xlink:title
xlink:type

Namespaces

xmlns:xlink
Models and Context
May be contained in
<processing-meta>
Description
Text, numbers, or special characters, zero or more
Content Model
<!ELEMENT  extended-by  (#PCDATA %extended-by-elements;)*            >
Expanded Content Model

(#PCDATA)*

Tagged Sample

TaxPub>

TaxPub is an extension to the JATS that provides taxonomy domain-specific markup in articles published in the area of biological systematics. 
<article  dtd-version="1.3"
  article-type="editorial"
  specific-use="migrated"
  xmlns:mml="http://www.w3.org/1998/Math/MathML"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xml:lang="en">
<processing-meta
 tagset-family="jats"
 base-tagset="publishing"
 mathml-version="2.0"
 table-model="xhtml">
<extended-by>TaxPub (http://plazi.org/resources/schemas-and-ontologies/taxpub/)</extended-by>
</processing-meta>
 <front>...</front>
 <body>...</body>
 <back>...</back>
</article>