Beskrivelse: -- Definition --
This package provides base classes used to identify real-world objects. These identities may be used to provide implicit semantic associations between different 'implementation views'.
-- Description --
EXAMPLE: A real-world object identified as the 'Rhine' may be realised through a Network view (as a set of links and nodes), a Physical Waters view (as a Watercourse), and a reporting view (as a WFDRiver).
