Survivability Model Based on System Structure and Runtime Environment

The security problems of software become more and more serious,and software survivability is an extension of software security researches. However, the survivability models can rarely bring out a practical method by now. In this paper, we consider the effect of different system structures and runtime environments on system survivability. Firstly, we construct a service survivability model by considering the effect of environment; secondly, we consider the relationship between the system structure and services and construct a model based on service survivability to reflect the system survivability. Finally, based on this model, a recovery approach is illustrated when parts of or all the system's services are failed.