軟件過程與管理chapter_16軟件質(zhì)量保證-文庫吧資料
2025-01-18 16:11本頁面
【正文】 y and cause an entire system to fail. ? If hazards can be identified early in the software process, software design features can be specified that will either eliminate or control potential hazards. 討論和作業(yè) ? 一個正確的程序還能不可靠嗎？ ? 一個正確的程序還能不表現(xiàn)高質(zhì)量嗎？ ? 除了統(tǒng)計錯誤和缺陷外，還有那些軟件特征具有質(zhì)量意義？ ? 給出兩個安全性至關重要的計算機控制系統(tǒng)，并為每個系統(tǒng)列出至少 3條與軟件失效直接相關的災難。 Process measurement ... an understanding of how to improve quality ... Collect information on all defects Find the causes of the defects Move to provide fixes for the process 15 Statistical SQA ? Information about software errors and defects is collected and categorized. ? An attempt is made to trace each error and defect to its underlying cause . ? Using the Pareto principle (80 percent of the defects can be traced to 20 percent of all possible causes), isolate the 20 percent (the vital few). ? Once the vital few causes have been identified, move to correct the problems that have caused the errors and defects. ?已經(jīng)證明統(tǒng)計軟件質(zhì)量保證技術確實質(zhì)量提高，某些情況下，軟件組織已經(jīng)去得了每年減少 51%缺陷的好成績。 identifies, documents, and tracks deviations。t want to explain it.) ? Everyone thinks execution is only a matter of following natural inclinations. (After all, we do get along somehow.) ? And, of course, most people feel that problems in these
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