Ruby on Rails is one of the most remarked Web programing framework now. This video(50MB) shows that takes only 15 minutes for starting web application with Ruby on Rails.
Ruby on rails has automated code generation with template, testing framework, O/R mapper and so on with easy configuration. Ruby is an object oriented script language, which is the best open source software from Japan.
I doubted on its productivity because it sounds like bait advertising. But I fall for the hype after twenty minutes! Ruby on Rails has such impact for me and I believe that this is a revolution web programming and Ruby on Rails will change development on medical softwares. Now I am taking on Ruby on Rails for one of my project. If you are interested in, please test to take on it. It is, no doubt, amazing world.