Abstract
In software development projects, development size estimation is important in project management. However, the development size is underestimated by lack of information in the early stage. In this study, we proposed a method to evaluate the development size based on use case points method. Focus of the proposal is the influence of stakeholders. We incorporated user information into the evaluation formula by counting the user property. In addition, non-functional requirements are evaluated with the assistance of non-functional requirements grade.