Abstract
In IT infrastructure building projects, there are not generalized human resource estimation model because there is no calculation base like application program code. Inaccurate human resource estimation would be one of the causes of the project failure, so the objective human resource estimation metrics is required. This paper proposes the approximate human resource estimation model in the initiation phase. The metrics we propose are listed below: (1) Analyze the project to identify the project size and the factors of difficulty (2) Transform the factors of difficulty to size using the coefficient of difficulty (3) Calculate the total human resources with the project size and the size of difficulty which was transformed. The resource is calculated by the model created by analyzing the actual projects. This metrics was applied to the resource estimation for the actual project and verified the effectiveness with the result.
