基于结构重要度的 AGREE 软件可靠性分配方法

摘要

Software reliability allocation is an important task in software reliability design.In regard to the AGREE method in it,the key relies on the calculation of importance and complexity degrees.We use the structure importance analysis method in fault tree to construct importance factor.Furthermore,we integrate the unit-scale estimation value and fault tree structure to construct complexity factor.Example calculation demonstrates that the method can effectively carry out software reliability index allocation.%软件可靠性分配是软件可靠性设计的一项重要任务。软件可靠性分配中的AGREE法的关键在于重要度和复杂度的计算。采用故障树中的结构重要度分析方法，构造重要度因子。并结合单元规模估计值及故障树结构，构造复杂度因子。实例计算表明，该方法能够有效地进行软件可靠性指标分配。