Live upgrades of CORBA applications using object replication

In a distributed system, software modification to correct programmer errors and to enhance functionality is often necessary, but incurring the downtime required to perform software upgrades can be prohibitively expensive or logistically infeasible. The Eternal Evolution Manager addresses this problem by enabling CORBA applications to be upgraded while they continue to provide service. The off-line analysis in preparation for the live upgrade is largely automatic, and the upgrade itself is fully automatic. The Eternal Evolution Manager insulates the application programmer from the difficult problems inherent to software evolution