Backmatter typically contains supporting material that provides additional information and context. In a typeset article backmatter appears after the main text of the article. In online environments the backmatter may be displayed after the main text of the article and may also be displayed separately from the text of the article and may be used as metadata about the article. There are specific tagging requirements for backmatter to be tagged in JATS XML within <back> or <article-meta>. The backmatter of an article may include the following (this is not an exhaustive list):
The <sec> element may be used within <back> to contain material that has not been explicitly named as one of the backmatter components listed above. Each <sec> element within <back> should have a @sec-type attribute.