
220 ◾ COSMIC Function Points: Theory and Advanced Practices
© 2011 by Taylor & Francis Group, LLC
interpretation indicates that the high value of 87 might not be due entirely to
the error term alone in this model.
With this specic data set, the two largest projects have a signicant inuence
on the regression model: it can therefore be observed that the conversion formula
does not work well for small projects with less than two hundred NESMA points,
providing even negative numbers, which is not possible in practice. is means that
for small projects in this environment, distinct regression models should be built
using only data within a relatively ...