W
- W3C MMI
- WDDX: Web Distributed Data eXchange
- Web feed
- Web Ontology Language: a language for defining and instantiating Web ontologies (a set of concepts within a domain and the relationships between those concepts)
- Web Services Flow Language: an XML language proposed by IBM to describe the composition of Web services, later superseded by BPEL
- Web Services Description Language: an XML-based language that provides a model for describing Web services
- Web Services Dynamic Discovery: a technical specification that defines a multicast discovery protocol to locate services on a local network.
- Wellsite information transfer standard markup language
- WML Wireless Markup Language
- WiX: Windows installers data
- WordprocessingML: a file format specification for the storage of electronic documents
- WS-Policy
Read more about this topic: List Of XML Markup Languages