Usability has been a topic of considerable interest in the health IT community. Gans et al. (2005) provided evidence that some frequently cited reasons for lack of adoption of Electronic Health Records (EHRs) - security, privacy, and systems integration - are outranked by productivity and usability concerns. Similar themes emerge in reports from AHRQ (Agency for Healthcare Research and Quality) (2009a, 2009b, 2010) and from the Health Information Management Systems Society (2009).