Editing Schematron (section)

== Uses ==
Constraints are specified in Schematron using an XPath-based language that can be deployed as XSLT code, making it practical for applications such as the following:
; Adjunct to Structural Validation: By testing for co-occurrence constraints, non-regular constraints, and inter-document constraints, Schematron can extend the validations that can be expressed in languages such as [[Document Type Definition|DTD]]s, [[RELAX NG]] or [[XML Schema (W3C)|XML Schema]].<ref>{{Cite journal|title=Schematron - More useful than you'd thought|first=Philip|last=Fennell|date=June 2014|journal=XML London 2014|doi=10.14337/XMLLondon14.Fennell01|pages=103–112|isbn=978-0-9926471-1-7|url=http://xmllondon.com/2014/presentations/fennell/|doi-access=free}}</ref>
; Lightweight Business Rules Engine: Schematron is not a comprehensive, [[Rete algorithm|Rete]] rules engine, but it can be used to express rules about complex structures with an XML document.
; XML Editor Syntax Highlighting Rules: Some XML editors use Schematron rules to conditionally highlight XML files for errors. Not all XML editors support Schematron.