Derivation and use of a survivability criterion for DDP systems

Abstract

With the advent of low cost compact computing systems, there has been a natural tendency to bring the computer to the job rather than the job to the computer. The geographical distribution of computing also leads to a necessity to interconnect installations so that they can share data, provide back up computing support, and permit rapid transfer of messages between sites. We are now seeing the emergence (1, 2) of networks of computers interconnected by communication facilities. There are numerous benefits to be achieved by this dispersal of computing facilities including more reliable overall operational capability, better overall service to geographically separated sites, and the advantages of being able to utilize a wide range of software and hardware facilities available through telecommunication systems.