The document discusses the RubyWorld Conference 2011 and promotes various Ruby and Ruby on Rails tools and resources. It highlights companies and projects using Ruby including Heroku, Pivotal Tracker, RSpec, Cucumber, GitHub, and RailsAdmin. It also shares links to presentations about Agile development with Ruby.
26. “ RSpec is a Behaviour-Driven
Development tool for Ruby
programmers. ...
... RSpec helps you do the TDD
part of that equation, focusing
on the documentation and
design aspects of TDD.
http://relishapp.com/rspec