On the value of project productivity for early effort estimation

In general, estimating software effort using a Use Case Point (UCP) size requires the use of productivity as second prediction factor. However, there are three drawbacks to this approach: (1) is no clear procedure for predicting in early stages, (2) fixed or limited ratios does not allow research reflect realities industry, and (3) from historical data often challenging. The new UCP datasets now available us perform further empirical investigations variable order estimate effort. Accordingly, four different models based on were used. results showed that learning more efficient than classical approaches rely default values. addition, environmental factors accurate. From here we conclude an effective factor presence absence previous data. Moreover, measurement should be flexible adjustable when available.