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The Resource Description Framework (RDF), standardized by a W3C recommendation [1], provides the DAF with a formal model of
data and a consistent terminology. The RDF model is similar in scope to the relational model of data but it is easier to adapt
to various object oriented and hierarchical data repositories, while remaining compatible with the relational model. It also
links the DAF to Web technologies and to the XML CIM language. Like the DAF, this language is based on a combination of RDF
and the EPRI CIM.
Adopting an explicit model of data in the DAF is expected to help implementers adapt or wrap data repositories. Without it,
they would need to infer an implicit structure behind the DAF interfaces. Implementers will find it useful to refer to the
W3C recommendation, however this specification can be understood without it.