What impressed me in "Code Complete" !

The results of the TSP and cleanroom projects confirm another version of the General Principle of Software Quality: it’s cheaper to build high-quality software than it is to build and fix low-quality software. Productivity for a fully checked-out, 80,000-line cleanroom project was 740 lines of code per work-month. The industry average rate for fully checked-out code is closer to 250–300 lines per work-month, including all noncoding overhead (Cusumano et al 2003). The cost savings and productivity come from the fact that virtually no time is devoted to debugging on TSP or cleanroom projects. No time spent on debugging? That is truly a worthy goal!

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