Cale Pennington, edX Architect, and Xavier Antoviaque of OpenCraft demonstrate how to use XBlocks, edX's component architecture, to create rich, engaging online courses at the 2014 Open edX conference.
View the presentation on the OpenCraft web site
Xavier Antoviaque is an Open edX developer and contributor. He is also the CEO of OpenCraft, which provides development services and consulting for public institutions and companies using the Open edX platform, including HarvardX, the edX organization itself, and the French government (FUN), among others. He is a long-time contributor of free software communities: he co-created the free software game Card Stories, initiated the Ryzom.org campaign, and is a former board member of April, the main free software advocacy organization in France.
Calen Pennington is a Lead Architect at edX, currently working on the Platform team. He was one of the first engineering hires for the nascent edX when it was running out of CSAIL at MIT, and was one of the designers of the XBlock framework.
Previously, he worked at Wireless Generation in NYC, and Endeca in Cambridge. He graduated with a BA in Computer Science from Cornell University.