8.2.3 Associated standards

• XLink is a draft specification for links in XML. It's closely related to the hyperlinks module of HyTime.
• XPointer is a draft specification for location specifiers in XML, so that you can refer, for example, to `the second section beneath the element with id so-and-so'. As with XLink, it's closely related to HyTime.
• XSL are style sheets for XML. These are vital if XML is to be readable when it is served over the web (because it doesn't have the fixed semantics HTML has, XML rendering can't be left entirely to a browser).
• The Document Object Model (DOM) is `a platform- and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure and style of documents' [from the spec]. It's a simple set of O-O declarations for querying and manipulating XML documents in simple ways (small subset of DSSSL).
• HyTime is a very high-level standard for associating semantics with SGML DTDs.
• DSSSL is the Document Style and Semantics Specification Language. It's a language for writing stylesheets in. Both HyTime and DSSSL are specific to SGML, but have informed the other standards above.