Endnotes

[1] IRI: see [ IRI ] .

[2] http://tools.ietf.org/html/rfc3986

[3] this is a simplification of RFC 3986, that calls global IRI refs as “absolute path references” and local IRI refs as “relative path references”.

[4] Contiguity does NOT mean that the identifier must be called "id", or that it must be the only attribute to exhibit identification characteristics

[5] Transferability does not mean "identical value", but only that a transformation between the two values must be possible in an automatic way.

[6] We use here a simplified version of the Naming Convention, [doc]/~[portion] , where [doc] is the IRI reference for the whole document, and [portion] is the identifier of the portion.