David Ezell has worked in the Petroleum Retail industry since 1987.  He joined VeriFone, Inc. in 1998, where he currently fills the role of Chief Architect for Integrated Systems.  He has represented the National Association of Convenience Stores (NACS) on the World Wide Web Consortium (W3C) Advisory Committee since 2005, and he chairs the POS / Backoffice committee at the Petroleum Convenience Alliance for Technology Standards (PCATS).