关键词: 软件可靠性, 功能路径, 操作, 输入空间, 运行状态

Abstract: Software reliability is usually estimated with reliability models, but most of theories on software reliability are evolved from the hardware, which may not reflect the feature of software appropriately. For this reason, a software reliability estimate method based on function-path is presented by the fault origin of software. The connection between software reliability and the amount of fault-path is built by the concept of function-path, and then the connection to input space is also built by the concept of operation. The paper analyses the relation between time and software reliability, and proposes the method of the model in practice. Finally, the result of the experiment indicates that the method possesses reasonableness and feasibility. The method can be used for reliability validation in the usage phase.

Key words: software reliability, function-path, operation, input space, running status