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the economics of software quality, economics is an important quality issue because of the need to optimize life-cycle costs. the economics of software quality largely concern the costs of defect detection, prevention, and removal. the costs of finding and fixing defects includes costs to each of the following a. determining that there is a problem b. isolating the source of the problem c. determining exactly what is wrong with the product d. fixing the requirements as needed e. fixing the design as needed f. fixing the implementation as needed g. inspecting the fix to ensure it is correct h. testing the fix to ensure it fixes the identified problem i. testing the fix to ensure it doesn't cause other problems j. changing the documentation as needed to reflect the fix the main objective is to remove defects as early as possible. always review and inspect programs soon after they are produced, this minimizes the number of defects in the product at every stage. some fix time data refers to time required to identify software defects.