<p> The Joint Commission recently studied 120 Sentinel Events, a third of which were related to human-computer interface. Think of a case where you chose the wrong item from a drop-down menu, or if you had two files open and clicked the wrong one. Clinical content was nearly a quarter of them. That relates to design issues related to clinical content, like the ability to have two EHRs open at once. Another quarter were workflow and communication issues. Three issues each had 6%: policies/procedures/culture, people (training or failure to follow the procedures in place), and software or hardware issues.</p>