Model of Survivable Architecture

Critical information system in Internet is in face of increasingly security problems. More attention has been focused on the survivability of information system, which is the capability of system to continue its mis- sion even in the presence of damage to the system. The authors first introduce the definition of survivability. According to four function properties of survivability, which are Resistance, Recognition, Recovery, and A- daption, the authors design a model of survivable system structure and then explain survivability requirement, survivability strategy in this model. Additionally, they provide possible technical solutions for the survivability of systems, categorized by different aspects of our survivability strategy.