Software dependability evaluation based on cloud model
基于云模型的可信性评估模型*

As the application fields of software are constantly expanding, software dependability is a key issue nowadays. However, the existing software dependability evaluation methods cannot attach enough importance to quantization. This paper presented a software dependability evaluation model based on cloud model with an application background of REST representational state transfer architecture. The component trust cloud and system synthesis trust cloud were defined to evaluate component and system dependability. It analyzed the dependability problem from four levels, parameter data acquisition, trust cloud generation, trust cloud synthesis and trust cloud application. The experimental data shows the validity and flexibility of the evaluation model based on REST architecture using cloud theory.