Recursive temporal namespaces

Recursive temporal (RT) namespaces extend spatial namespaces such as IP with the notion of a nested time interval. RT namespace is an architectural approach to dealing with the uncertainty associated with changes to distribution, syntax or semantics of large-scale namespaces that are associated with high cost and probability of failure. We discuss the abstract design issues associated with RT namespaces and two existing approaches that are special cases of the general design. We also propose a variant of IP based on RT namespaces that supports open-ended evolution.