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 Systems ProductsBusiness ProductsShrink-Wrap Products
System Size

(lines of code)

Schedule

(month)

Effort

(man-month)

Schedule

(month)

Effort

(man-month)

Schedule

(month)

Effort

(man-month)

10,00010 48 6 9 7 15
30,00016 185 9 37 11 59
50,00020 360 11 71 14 115
100,00026 820 15 160 18 270
200,00035 1,900 20 370 24 610
300,00041 3,000 24 600 29 1,000
500,00051 5,500 29 1,100 35 1,800

< Sources : Derived from data in
Software Engineering Economics (Boehm 1981),
"An Empirical Validation of Software Cost Estimation Models" (Kemerer 1987),
Applied Software Measurement (Jones 1991),
Measures for Excellence (Putnam and Myers 1992),
Assessment and Control of Software Risks (Jones 1994)>

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