Yehuda Katz is a committer to several top open source projects, including Ruby on Rails and jQuery. He's also driving development of Ember.js, a framework for creating "ambitious web applications." This course begins as Yehuda builds the backend for a scoring system using Rails 3. In about 80 minutes, he writes a prototype for retrieving data and serializing it for use on a client. In the second part, he finishes the project started in Part 1 by building a front end for a scoring system using Ember.js. In about an hour, he builds a search field that retrieves data from the server, calculates a score, and displays it. Note - this course uses an ancient version of Ember.js. If you're a fan of Yehuda Katz or want to watch him work through a simple app, check out this course. Otherwise, be sure to watch Fire Up Ember.js, which covers the latest Ember.js.