---

• To emphasize that a node is of a specific class
  • i.e., it is part of a possible set of individuals
  • e.g., #Datalines node is an “SVG entity”
• There is a separate document on how to define classes
  • “RDF Vocabulary Description Language”, a.k.a. “RDF Schemas”
  • see later in this tutorial
• We can use the special RDF property rdf:type:

    <rdf:Description rdf:about="#Datalines">

      <rdf:type 

        rdf:resource="http://.../axsvg-schema.rdf#SVGEntity"/>

       ...

    </rdf:Description/>

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Ivan Herman, W3C 43 (144)