| Dialect | Namespace | Spec |
|---|---|---|
| Semantic | ||
| OWL | → | |
| OWL 2 | → | |
| RDF | → | |
| RDFS | → | |
| RIF | → | |
| SKOS | → | |
| SPARQL | → | |
| SPARQL Service | → | |
| Authoring | ||
| GeoRSS | ||
| HTML 5 | → | |
| MathML | ||
| SVG | → | |
| XHTML | → | |
| XML Schema | → | |
| XSL Stylesheet | → | |
| Metadata | ||
| CC REL | → | |
| Dublin Core | → | |
| EXIF | ||
| FOAF | → | |
| Syndication | ||
| Atom | ||
| Atom Publishing | → | |
| RSS | ||
| Syndication | ||
| Web services | ||
| SOAP | ||
| SOAP Encoding | ||
| SOAP Envelope | ||
| WSDL | ||
| Vendor | ||
| Corese | → | |
| INRIA Rules | → | |
| Maven | ||
| gCal | ||
| Other | ||
| OpenSearch | ||
| XMLNS | ||
| XSI | ||
| XSLT | → | |
| Xlink | → | |