Redesign of the Columbia University Infobutton Manager.

Background: The Infobutton Manager (IM) is an application that provides clinical users with context-specific links to health information resources. Usage of the first version (IM-1) suggested that the user interface was suboptimal.

Methods: We conducted a laboratory-based observational study of IM-1, use, applied standard user interface design techniques to address observed problems, developed a new version (IM-2), conducted a second observational study and analyzed log files of the actual use of IM-1 and IM-2.

Analyzing workflow in emergency departments to prepare for health information exchange.

The New York Clinical Information Exchange (NYCLIX) was established to facilitate data sharing across 14 organizations. Workflow evaluations were conducted to identify mechanisms by which clinicians could be informed of NYCLIX data in the Emergency Department (ED). Interviews focused on the interval between patient arrival to the ED and clinician notification of a new patient arrival.