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Failed Project Facts

The following items are taken from an article in Baseline Magazine:70% TO 85% OF ALL PROJECT REWORK COSTS are due to errors in requirements, says a 1997 article in American Programmer.30% TO 50% OF THE TOTAL EFFORT EXPENDED on a software project comes from rework, according to an estimate by Borland Software.
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Written by Michael Krigsman, Contributor on

The following items are taken from an article in Baseline Magazine:

70% TO 85% OF ALL PROJECT REWORK COSTS are due to errors in requirements, says a 1997 article in American Programmer.
30% TO 50% OF THE TOTAL EFFORT EXPENDED on a software project comes from rework, according to an estimate by Borland Software.
ALMOST 50% OF DEFECTS IN SOFTWARE PROJECTS can be traced to errors in requirements, Borland says.
71% OF FAILED SOFTWARE PROJECTS suffer from poor requirements management, according to a paper presented at the 1999 Applications of Software Measurement Conference.

These numbers sure sound right to me.

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