Date Added: Aug 2011
One important problem with software development projects is to get an early and nevertheless accurate estimation of the effort needed to complete the project within the schedule. In the paper, various methods have been developed for this purpose. The most popular examples are Boehm's COCOMO, Albrecht's Function Point Method or Sneed's object-point method. The two last named methods are based on early results of an analysis phase; whereas COCOMO is based on an a priori estimation of the software size in "Lines of Code". Despite of the increasing needs and available tools and methods, a satisfactory solution is still to be found.