An Efficient Survivability Hierarchy Analysis Model for Networked Information System

This paper presents an efficient survivability hierarchy analysis method for networked information system. In the hierarchical model, the top level is the survivability of system; the second is the survivability of essential service; the third is the survivability of atomic module; the lowest one is vulnerability. With the help of attack graph, the survivability (3R+A) is quantified according the records of the Qos before and after attack. Key words: survivability, hierarchical model