Estimating Software Projects with Function Point Analysis

Function Point Analysis, although developed in the mid-70s and made popular in the 80s and 90s, is finally achieving recognition as a de facto standard for estimating the size of software projects.

The concept is that inputs, outputs, external inquires, and internal or external files are scored, with a value adjustment factor added based on a host of other criteria.

At SoftwareMetrics.com, there's a good writeup on Function Point Analysis, along with a downloadable Function Point Analysis Training Manual. Check it out...

Fundamentals of Function Point Analysis