As IT systems become an important competitive element in many industries, technology projects are getting larger, touching more parts of the organization, and posing a risk to the company if something goes wrong. Unfortunately, things often do go wrong. Our research, conducted in collaboration with the University of Oxford, suggests that half of all large IT projects—defined as those with initial price tags exceeding $15 million—massively blow their budgets. On average, large IT projects run 45 percent over budget and 7 percent over time, while delivering 56 percent less value than predicted. Software projects run the highest risk of cost and schedule overruns1 (Exhibit 1).
These findings—consistent across industries—emerged from research recently conducted on more than 5,400 IT projects2 by McKinsey and the BT Centre for Major Programme Management at the University of Oxford. After comparing budgets, schedules, and predicted performance benefits with the actual costs and results, we found that these IT projects, in total, had a cost overrun of $66 billion, more than the GDP of Luxembourg. We also found that the longer a project is scheduled to last, the more likely it is that it will run over time and budget, with every additional year spent on the project increasing cost overruns by 15 percent.
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