Abstract: A tool estimates the size of a computer-related project. Transaction function points are quantified regarding transactions against files or data in the computer-related project. Data function points are quantified regarding files used to store data for the computer-related project. An unadjusted function point is calculated in accordance with the transaction function point and data function point. A value adjustment factor is determined as modified for a particular implementation. An adjusted function point is calculated in accordance with the unadjusted function point and the value adjustment factor. The size of the computer-related project is estimated in accordance with the adjusted function point.