This presentation was delivered in an IDC Health Insights webcast on June 6, 2012. The presentation summarizes the research published as IDC MarketScape: U.S. Ambulatory EMR/EHR for Small Practices 2012 Vendor Assessment (IDC Health Insights #HI234732, May 2012) and IDC MarketScape U.S. Ambulatory EMR/EHR for Midsize and Large Practices (IDC Health Insights #HI230719, November 2011). This presentation focuses on the May 2102 report, but also presents comparative information that will allow readers to compare and understand the differences between the reports.