Additional information tied to a particular location in the text. This material is not considered to be part of the body of the text, but is an aside used instead of, in addition to, as a source for, or as a commentary on either some body text or on an element in the metadata.
A footnote <fn> usually contains material that cannot stand alone: material that is related to a word, phrase, table cell, or paragraph already in the basic textual material and thus is tied to a particular location in the text or to a structure in the text, such as a table or figure. Thus footnotes may appear within paragraphs of text in the narrative body or inside structures such as figures, boxed-text, and tables as part of that structure.
Collections Footnotes: Footnotes may be collected together for display, inside a grouping element <fn-group>).
Display of Footnotes: In print, footnotes are traditionally displayed:
- at the bottom (foot) of a printed page,
- at the bottom of the structure such as a table (table notes) or figure (figure notes) they are inside, or
- in a list at the end of a standards document (which are sometimes called end notes; this grouping is tagged with the <fn-group> element).
Referencing a Footnote: A reference to a <fn> is made with the <xref> element, using the @ref-type attribute set to “fn”.
Language: To describe a footnote that is not in the same language as the original standards document (for example, a German or Latin footnote for a document in English), use the @xml:lang attribute on the footnote.
Best Practice Footnote Placement: Within a document, footnotes that are specific to a structure, such as a table of figure, should be placed inside that structure. Footnotes in the narrative text should either be placed:
- Throughout the XML, at the place to which they are linked, or
- Grouped at the end of the document.
The following, in order:
- <label> Label of a Figure, Reference, Etc., zero or one
- One or more of any of:
This element may be contained in:
<aff>, <alt-title>, <article-title>, <attrib>, <bold>, <chem-struct>, <code>, <collab>, <comment>, <compl>, <compound-kwd-part>, <def-head>, <element-citation>, <fig>, <fixed-case>, <fn-group>, <full>, <intro>, <italic>, <label>, <license-p>, <main>, <meta-value>, <mixed-citation>, <monospace>, <named-content>, <on-behalf-of>, <overline>, <p>, <preformat>, <related-term>, <roman>, <sans-serif>, <sc>, <see>, <see-also>, <see-also-entry>, <see-entry>, <speaker>, <std>, <strike>, <styled-content>, <sub>, <subtitle>, <sup>, <supplementary-material>, <table-wrap-foot>, <td>, <term>, <term-head>, <th>, <title>, <trans-subtitle>, <trans-title>, <underline>, <verse-line>
A footnote and the cross-reference to it:
... <p>... Stakeholders should include older persons and persons with disabilities from organizations representing these populations and those persons with a knowledge of the accessibility needs of children and gender-related groups<sup><xref ref-type="fn" rid="fn1">1</xref>)</sup>. <fn id="fn1"> <p>Further information relating to the involvement of users and potential users can be found in ...</p> </fn> </p> ...
... <table-wrap> ... <table>...</table> <table-wrap-foot> <fn-group> <fn id="tfn00001"> <label>A</label> <p>From Benz et al. <bold>(<xref rid="pr00032">32</xref>)</bold>, Stoltzfus <bold>(<xref rid="pr00044">35</xref>)</bold>, specimens 3.2 mm ( 1/8 in.) in diameter by 127 mm (5 in.) long.</p> </fn> <fn id="tfn00002"> <label>B</label> <p>See <xref rid="tx00008" ref-type="table">Table X1.8</xref> for alloy compositions.</p> </fn> <fn id="tfn00003"> <label>C</label> <p>A 3-L accumulator was added to the test chamber on all tests that were conducted at 3.5 or 6.9 MPa (500 or 1000 psig), except on those tests marked with FootnoteC.</p> </fn> <fn id="tfn00004"> <label>D</label> <p>NP=Nonpropagating (less than 5 cm of the specimen length was consumed), CB=Completely burned.</p> </fn> <fn id="tfn00005"> <label>E</label> <p>These tests were conducted using the video setup. No burn rate was calculated.</p> </fn> </fn-group> </table-wrap-foot> </table-wrap> ...