- You can use the
rdf:aboutas a URI for external resources- i.e., store the RDF as a separate file
- You may add RDF to XML directly (in its own namespace)
- e.g., in SVG:
<svg ...>
...
<metadata>
<rdf:RDF xmlns:rdf="http://../rdf-syntax-ns#">
...
</rdf:RDF>
</metadata>
...
</svg>