RDF is a standard model for data interchange on the Web. RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed.
It provides a standardized and precise way to make formal logical statements about domains, and can be the basis of logical inference, provide a queryable graph, and enable data integration.
I work for a company that does a lot in this space.
I'll go over history, theoretical background, the state of the art in regards to tools and standards.
Perhaps there will be a demonstration of an RDF graph manipulation library.