Abstract
In the software development project, it is very important to perform works based on methodology. If we start working without methodology, we will be unable to make effective project plans, which may lead to failure in project management itself. We will also face the same problem of software development in the project pursuing newly creative objectives. In this paper, I clarified wants and needs in building methodology by categorizing them to what is necessary, what is better to have, and what is related to quality. I also reported a case of methodology development with those factors incorporated.