关键词: 软件可信性, 演化, 移动元胞自动机

Abstract: Evolution is the core issue of software trustworthiness. In order to study how the interference effects on the software trustworthiness under the dynamic, open and changing environment, this paper analyzes the transmission process of software system trustworthiness, builds the user-oriented moving cellular automata model about software trustworthiness evolution based on the cellular automata and dissipative structure theory, and simulates the changing process of software trustworthiness when the system has been interfered. The results of simulation show that the evaluation values of trustworthiness will decrease when the system is interfered and its running status change. After the system undergoes a series of disturbances, the final evaluation value of system trustworthiness will be stable. All these provide a novel method for dynamic evaluating and forecasting software trustworthiness.

Key words: software trustworthiness, evolution, moving cellular automata