What is Ruby on Rails
http://www.rubyonrails.org/
•Web development framework in Ruby
•With RDBMS (Mysql, Postgres, SQL Server, SQLite etc)
•Strong prototyping (e.g. Model-View-Controller (MVC) stucture)
•Comprehensive library (covering Ajax and Web service)
•Ruby-embedded html
–à suitable to use our Ruby library
•Has a private web server (Webrick); also runs on Apache, lighttpd etc
–à One can personally run a web server anywhere with arbitrary port