Container element for copyright and license information for the entire article or for the object which contains the <permissions> element.
The <permissions> element is used in two contexts: inside the metadata of an article or sub-article and inside the specific metadata for a block object such as a section, figure, or table.
When used in the article or sub-article metadata (including inside <event>), <permissions> refers to the entire document, containing the document’s copyright, copyright statement, permission to read, license, etc.
When <permissions> is contained in an object such as a figure, for example, it records the ownership of the intellectual property of the object, such as the current copyright statement, copyright year, etc. for that figure. If the figure was previously published or has a different author from the article, that information should be described using the <attrib> element, which is a container element for information concerning the origin of the figure, extract, display quote, poetry, or similar element to which it is attached (where it came from, who said it, who created it, etc.).
Contents of Permissions: The sub-elements of <permissions> are repeatable. If multiple values are applicable (such as multiple copyright years), they should be tagged separately rather than as multiple values within a single element. Repeated values do not describe the source of the material, they describe the current Intellectual Property for the article or object.
<!ELEMENT permissions %permissions-model; >
Expanded Content Model
(copyright-statement*, copyright-year*, copyright-holder*, (ali:free_to_read | license)*)
This element may be contained in:
Providing copyright information for an article:
... <article-meta> <article-id pub-id-type="pmid">...</article-id> <title-group>...</title-group> <contrib-group>...</contrib-group> <aff id="StLukes">...</aff> <pub-date publication-format="print" date-type="pub" iso-8601-date="1999-03-27"> <day>27</day><month>03</month><year>1999</year> </pub-date> <volume>318</volume> <issue>7187</issue> <fpage>837</fpage> <lpage>841</lpage> <history> <date date-type="accepted" iso-8601-date="1999-01-29"> <day>29</day> <month>01</month> <year>1999</year></date> </history> <permissions> <copyright-statement>Copyright © 1999, British Medical Journal</copyright-statement> <copyright-year>1999</copyright-year> <copyright-holder>British Medical Journal</copyright-holder> </permissions> <abstract> <p>To examine the effectiveness of day hospital attendance in prolonging independent living for elderly people.</p> </abstract> </article-meta> ...
Indicating that a document is free to read any time after a particular date:
... <permissions> <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2014-01-01"/> </permissions> ...
The document has an “open license” from examplesite.org starting on February 3, 2015:
... <permissions> <license> <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2015-02-03"> http://www.examplesite.org/open_license.html</ali:license_ref> </license> </permissions> ...