Abstract
One of the important roles of project managers are to estimate projects' scale properly at early project phase in order to get appropriate projects' budget from their clients to carry out their projects successfully. I tried and evaluated the function point count to estimate projects' scale at early project phase. I chose and adopted two simple function point count method which proposed by NESMA (Netherlands Software Metrics Users Association). I evaluated the method using actual data and got proper function point count for the data. Therefore the estimated FP count method is useful for project's scale estimation at early phase with some prerequisite on project phase control for the software development projects.