In Chapter 10 of 16 in his 2011 Capture Your Flag interview, cloud computing technology executive Marc Ferrentino answers "So How Has Your Approach to Solving Problems You are Having Led You to Developing Social Tools for the Enterprise?" Ferrentino, who concepted a corporate social network called Chatter, walks through the process that informed why and how Salesforce Chatter was built. He compares and contrasts corporate social networks with consumer social networks and what he learned about applying Web 2.0 and social tools in an enterprise environment. Ferrentino is Chief Technology Officer (CTO) of cloud computing at BMC Software. Previously, he was Chief Technology Architect (CTA) at Salesforce.com. Previous to Salesforce.com, Ferrentino worked in mobile and Internet startups and at Goldman Sachs. He earned a BSEE in electrical engineering from the University of Michigan.