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| Systems Products | Business Products | Shrink-Wrap Products | ||||
|---|---|---|---|---|---|---|
| System Size (lines of code) | Schedule (month) | Effort (man-month) | Schedule (month) | Effort (man-month) | Schedule (month) | Effort (man-month) |
| 10,000 | 6 | 25 | 3.5 | 5 | 4.2 | 8 |
| 30,000 | 9 | 110 | 5.5 | 22 | 7 | 37 |
| 50,000 | 11 | 230 | 7 | 46 | 8 | 79 |
| 100,000 | 15 | 540 | 9 | 110 | 11 | 190 |
| 200,000 | 20 | 1,250 | 11 | 250 | 14 | 440 |
| 300,000 | 24 | 2,100 | 14 | 420 | 16 | 725 |
| 500,000 | 30 | 3,900 | 17 | 780 | 20 | 1400 |
< 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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