Abstract
One of the major causes of project failure is that customer's requirement is not well understood and described. The project, in which the requirement definition, the specification change, and the scope change are mainly handled by the customer and the project team is passive, has higher possibility of failure. To derive the customer's real requirements in early phase is a key to lead the project to the success. The author discusses methods to mitigate the project risks caused by scope change, by predicting coming new requirements through the communication with the customer.
