'Closed world' assumptions in RDF

Saturday, November 13, 2004

One of the properties of RDF that bothers XML people is that the RDF model describes an 'open world' model. If something is not stated, you cannot assume it is true or false, because that information might be somewhere else e.g. pigs don't have wings.

Could we not use the XML declaration attribute standalone to determine that a document is self-contained? As in:

<xml version="1.0" encoding="UTF-8" standalone="yes">

That assumption would possibly elimitate the usefulness of that document in a Semantic Web, but could potentially make the 'open world' issue controllable.