"A Standish Group research report shows a staggering 31.1% of projects will be canceled before they ever get completed. Further results indicate 52.7% of projects will cost 189% of their original estimates."
"On the success side, the average is only 16.2% for software projects that are completed on time and on budget. In the larger companies, the news is even worse: only 9% of their projects come in on time and on budget. And, even when these projects are completed, many are no more than a mere shadow of their original specification requirements. Projects completed by the largest American companies have only approximately 42% of the originally proposed features and functions. Smaller companies do much better. A total of 78.4% of their software projects get deployed with at least 74.2% of their original features and functions."