Joel Spolsky has a great article on software schedule estimation - http://www.joelonsoftware.com/articles/fog0000000245.html http://www.joelonsoftware.com/artic

Joel Spolsky has a great article on software schedule estimation - http://www.joelonsoftware.com/articles/fog0000000245.html http://www.joelonsoftware.com/articles/fog0000000245.html. I found it useful and learned lot from it.