Cost to fix bugs and defects during each phase of the
2017-1-12u2002·u2002The Systems Sciences Institute at IBM reported that it cost 6x more to fix a bug found during implementation than to fix one identified during design. Furthermore, according to IBM, the cost to fix bugs found during the testing phase could be 15x more than the cost of fixing those found during design. Clearly, it's harder to rectify issues as ...
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