This book for developers familiar with Ruby on Rails who want to develop and roll out small applications deals with a key feature or functional area of a complex, full-scale Rails application in each chapter, from installing Ruby, Rubygems, and Rails on Windows, Linux, or Mac OS X and setting up a Subversion repository, to improving user interfaces with Ajax, deploying with Capistrano, and scaling through caching and the Mongrel server. Shortened to Rails or RoR, Ruby on Rails is an open-source web application framework ideal for building business applications, accelerating and simplifying the creation of database-driven websites with tools to rapidly build MVC web applications, providing easy rollout and update of applications, centralized processing and data handling, simple maintenance, straightforward development, and scalability. All businesses have small processes that can be automated to reduce costs and simplify everyday operations using intranet applications built on Rails.