Otherwise communication would be too limited for a
reasonable system trying to support Semantic Web applications.
??? The HIVE Communication Layer must provide some means to execute a lookup for
external services and resources. Services like UDDI (Heflin & Hendler, 2000) and
maybe also LDAP are typical candidates to be integrated. Although this might seem
like a rather minor and trivial point at first (especially given the fact that more or less
established technologies like LDAP and UDDI already exist), it must be stressed that
the integration of a powerful lookup service for other services and resources is of
major importance, especially so when considering the stress on ???fault tolerance??? and
???scalability???.
Scalability is rather easy to achieve in some respects if a lookup mechanism exists: Requests
for services, on one hand, can be dispatched to service endpoints based on a variety of loadbalancing
strategies and algorithms; only imagination limits the possible scenarios ranging
from simple round-robin algorithms to elaborate agent-based schemes where agents monitor
the CPU load on connected systems and use that information to control the dispatching of
further incoming requests.
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