Accurate Software Size Estimation Using the Updated Function Point Analysis Model

Abstract: In this paper; a new Function Point Analysis model has been proposed. In this proposed model, a new general system characteristic is added. The expert user programming also affects the size of software. By including it in the list of general system characteristics, it creates a provision for taking end user facilities into account, while estimating the size of a project. It is clear that proposed FPA provides more accurate size estimates and it will narrow the gap between size estimated and actual size. This will result in more accurate effort and cost estimates, which ultimately results in increased productivity and proper staffing, planning and scheduling.

Keywords: FPA, cost estimation, effort, size of project