Blog expert estimation
Four methods for software effort estimation
Understanding the size and effort of a software project early on is a difficult problem. Several different methods exist, but no method is perfect. In this article we present an overview of the four methods most mentioned in literature: 1) expert opinion-based, 2) top-down estimation, 3) bottom-up estimation and 4) estimation using a parametric or algorithmic model.
Joost Schalken-Pinkster