Comment posted What is the real development costs of Debian GNU / Linux – How much costs the development of a Free Software projects by .
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Software cost estimation is tricky business even when all the variables are known (which we certainly don’t have). One thing to remember is that COCOMO was created to model large institutional projects, which often don’t compare well with distributed open-source projects. Beyond just development time, COCOMO is meant to include the design, specification drafting, reviewing and management overhead that goes along with producing quality software.
This model seems to be most accurate with mature, large projects. Young projects with little activity are typically overvalued.
On the link below there is alaternative estimation on how much the Debian project costs
View CommentView Comment– http://www.ohloh.net/p/debian/estimated_cost
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Just as a matter of comparison it is interesting fact to know, the approximate number of lines of code in Microsoft Windows (data obtained from Wikipedia):
Year Operating System SLOC (Million)
1993 Windows NT 3.1 4-5
1994 Windows NT 3.5 7-8
1996 Windows NT 4.0 11-12
2000 Windows 2000 more than 29
2001 Windows XP 45
2003 Windows Server 2003 50
You see microsoft Windows contains a way less code compared to Debian Linux 🙂
However while comparing it should be considered Debian basic core with Gnome will be far less than the overall 419,776,604. Probably it will be just few million lines of code.
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