风险的成本估算完成后，可以针对风险表中的每个风险计算其风险曝光度。某软件小组计划项目中采用60个可复用的构件，每个构件平均是 100LOC，每个LOC的成本是13元人民币。下面是该小组定义的一个项目风险：1．风险识别：预定要复用的软件构件中只有60%将被集成到应用中，剩余功能必须定制开发2．风险概率：50%3．该项目风险的风险曝光度是 （ ） 。
- A.23400
- B.65000
- C.15600
- D.19500
正确答案及解析
正确答案
解析
风险曝光度，测量的是资产的整个安全性风险，它将表示实际损失的可能性与表示大量可能损失的资讯结合到单一数字评估中。在形式最简单的定量性风险分析中，风险曝光度可透过将风险可能性及影响相乘算出。风险曝光度（risk exposure）=错误出现率（风险出现率）×错误造成损失（风险损失）风险识别：可能需要重新开发1-60%构件的风险。该风险可能发生概率为50%。所以该项目风险的风险曝光度是（60×100×13）×（1-60%）×50%=15600。
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