| 考虑瞬时失效率的软件可靠性模型分析 |
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| 引用本文： | 郑晓东,崔志明,陈建明.考虑瞬时失效率的软件可靠性模型分析[J].苏州大学学报(医学版),2008,24(1):41-44. |
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| 作者姓名： | 郑晓东 崔志明 陈建明 |
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| 作者单位： | 苏州大学智能化信息处理及应用研究所,江苏苏州215006 |
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| 摘 要： | 在研究软件可靠性时存在着一个现象——无论是否修正错误，从用户角度观察到的产品失效率会随着时间而降低．提出了一个简单的模型来描述这种现象，在收集到的软件失效数和软件用户数量上运用这种失效率递减模型，就能够得到产品的瞬时失效率λ0、递减因子以及稳定状态下的失效率λf.
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| 关 键 词： | 软件可靠性 瞬时失效率 稳定状态的失效率 |
| 文章编号： | 1000-2073（2008）01-0041-04 |
| 收稿时间： | 2007-07-20 |
| 修稿时间： | 2007年7月20日 |
Analysis of reliability growth model considering transient failure rate |
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| Zheng Xiaodong,Cui Zhiming,Chen Jianming.Analysis of reliability growth model considering transient failure rate[J].Journal of Suzhou University(Natural Science),2008,24(1):41-44. |
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| Authors: | Zheng Xiaodong Cui Zhiming Chen Jianming |
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| Institution: | ( Institute of Intelligent Information Processing, Suzhou Univ. , Suzhou 215006, China) |
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| Abstract: | There is a phenomenon that has often been observed-the failure rate of a software product,as observed by the user, improves with time irrespective of whether bugs are corrected or not. We present a simple model to represent this phenomenon. Applying this failure rate decay model to the data collected on reported failures and number of users of the product,it is possible to determine the initial failure rate λ0, the decay factor, and the steady state failure rate λf of a product. |
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| Keywords: | software reliability transient failure rate steady state failure rate |
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