Early Functional Size Estimation with IFPUG Unit Modified

Nowadays functional size measurement is a strategic key to deal with the management of software systems development. The origin of this importance is the fact that functional size measurement is the main input variable in software effort estimation systems. Nevertheless, to obtain precise functional size measurements it is not only necessary to have a lot of information of the system to be developed, but also software project planning is one of the early stages in the project. To solve this difficulty, one of the main software management research technique is centered in the study of methods to obtain precise functional size measurements early in the development phase for early functional size estimation. The functional size unit selected to do the study has been IFPUG because is the most widely used method.