Survivability computation of networked information systems

Abstract

Survivability should be considered beyond security for networked information systems, which emphasizes the ability of continuing providing services timely in malicious environment. As an open complex system, networked information system is presented by a service-oriented hierarchical structure, and fault scenarios are thought of as stimulations that environment impact on systems while changes of system services' performance as system reaction. Survivability test is done according to a test scheme which is composed of events, atomic missions, fault scenarios and services. Survivability is computed layer by layer based on the result of survivability test through three specifications (resistance, recognition and recovery). This computation method is more practicable than traditional state-based method for it converts direct defining system states and computing state transition into a layered computation process. © Springer-Verlag Berlin Heidelberg 2005.