All but the most briefly used systems must evolve as their mission and roles change over time. Evolution in the context of large distributed systems is extraordinarily complex bec...
: In distributed and mobile environments, the connections among the hosts on which a software system is running are often unstable. As a result of connectivity losses, the overall ...
In many content distribution systems it is important both to restrict access to content to authorized users and to protect the identities of these users. We discover that current s...