<extended-by> Extended-by Model
Identification of an STS extension that the document claims to be following.
The <extended-by> element names an STS extension or superset that the document claims to be following. The content of <extended-by> may be a name or a URI of an extension. The element is repeatable so that more than one extension can be claimed.
The Processing Metadata element (<processing-meta>) provides a more complete in-the-XML description of the tag set associated with a document than the @dtd-version. A <processing-meta> names (through attributes) the tag set family, base tag set, table model, terminology model, and math 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 a standard or adoption, or part of the metadata for citing a standard; it is metadata about how the XML is constructed — not about how the standard is structured. This metadata is information at the “file level” and thus not part of <std-doc-meta> or <std-meta>, but inside the standard as a peer to <front>, which is the standard metadata container in STS.
- The Processing Metadata container element (<processing-meta>) was added to the model of <standard>, as a child element, the peer of <front> and to the model of <adoption>, as a child element, the peer of <adoption-front>.
- The elements inside <processing-meta> name tag set extensions (superset) and restrictions (subset, secondary schema, etc.) that the XML document claims to follow. More than one restriction or extension is allowed. The restrictions on an <adoption> need not be the same as on the enclosed <standard>, although they typically will be.
- The attributes on <processing-meta> describe the modeling choices made by this document in terms of tag set family, base tag set, table model, terminology model, and math tagging.
This optional container element holds the processing metadata elements that 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 “sts4i” or a URI, for example, the URL of a particular ISO recommendation. The element is repeatable so that multiple restrictions can be claimed.
- <extended-by> — Identification of an STS extension or superset that the document claims to be following. The content of <extended-by> may be a name or a URI. The element is repeatable so that more than one extension can be claimed.
- <custom-meta-group> — To hold other processing metadata an STS user might want to express in the XML file.
xlink:type (fixed value = simple)
xmlns:xlink (fixed value = http://www.w3.org/1999/xlink)
Models and Context
May be contained in
Text, numbers, or special characters, zero or more
<!ELEMENT extended-by (#PCDATA %extended-by-elements;)* >
Expanded Content Model