Abstract
Recently the environment which surrounds a company is increasing severity, and the request level to a development vendor, about the time for delivery, quality, and cost, from a company which plans to order for IT system is getting higher. In the development vendor to which I belong, there are many cases that IT system development projects face troubles, after project initiation. As a result, those cases disturb the achievements of a company and bring negative impacts to financial performance. Through the confused project that I was assigned, I would like to consider the causes of troubled projects.
