Reliability Evaluation Optimal Selection Model of Component-Based System

• 作者: Guo Yong Ma Pei Jun Su Xiao Hong Wan Tian Tian
• 来源期刊: 软件工程与应用(英文)
• 学科: 医学
• 关键词: OPTIMAL EVALUATION Approach LIKELIHOOD Estimation Reliability EVALUATION COMPONENT-BASED SYSTEM OPTIMAL SELECTION Model (OSM)
• 年，卷（期）: 2011,（7）
• 页码范围: 433-441
• 页数: 9页
• 分类号: R73

摘要

If the components in a component-based software system come from different sources, the characteristics of the components may be different. Therefore, evaluating the reliability of a component-based system with a fixed model for all components will not be reasonable. To solve this problem, this paper combines a single reliability growth model with an architecture-based reliability model, and proposes an optimal selecting approach. First, the most appropriate model of each component is selected according to the historical reliability data of the component, so that the evaluation deviation is the smallest. Then, system reliability is evaluated according to both the relationships among components and the using frequency of each component. As the approach takes into account the historical data and the using frequency of each component, the evaluation and prediction results are more accurate than those of using a single model.