Under the SI conception a user identification does not depends on specificities of the physical data transmission environment used, protocols driving the network and technological addresses of its elements used to establish traffic routing. Thanks to this fact, the same public addresses of the user are suitable for various telecommunication networks regardless of their difference in technological addressing rules.
Unification of SI user public addresses provides prerequisites for creation of a seamless information environment like "i2010 - A single European Information Space", in which any user has the same own address for the Internet and the telephony.
The SI technology also provides unification of information resource and system addresses in a similar manner.
Fig. 4. Unified addressing of users, services and information systems.
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