All related approaches from Section 3 avoid introducing changes
at this level. FARA explicitly allows multiple user-level service
namespaces. Ambient Networks is investigating this approach to
allow application-specific service and data object names, including,
for example, URLs, URIs or email addresses. The existing
service namespaces can be seen as part of a single, bigger namespace
that the Domain Name System (DNS) [17] bridges together
through the use of DNS names as part of service names. Addition ally, other service namespaces support local significance of
names. For reasons of interoperation with legacy networks, Ambient
Networks avoids modifying the established relations between
the current namespaces and the DNS.