Natural Mapping, Search and Affordance

Make things visible: bridge the gulfs of execution and evaluation. Use technology to make visible what would otherwise be invisible, thus improving feedback and the ability to keep control. –Donald A. Norman, The Design of Everyday Things Norman states: Mapping is a technical term meaning the relationship between two things, in this case between the […]

Lessons from Tufte

Most users (myself included) spend most of their time in front of a computer in a kind of fuzzy autopilot mode, and anything that creates ripples on that placid lake of unawareness is going to be noticed as a disproportionately significant problem. –David Harris, creator of Pegasus Mail In Icons, Pegagogic Vectors, Forms Design and […]

Where is my [fill in the blank]? and Passive Tracking

Where is the Chart!?!? If you visit different EDs, one of the most common tracking-type refrains you hear is “Where is Room 5’s chart? I’ve been looking for it for fifteen minutes!” Such problems delay ED patient care, and are one of the great motivators for moving to an all-electronic chart, one that can be […]

The Magic Number 7 (or maybe 4?), Forced Errors, Triage, and Color-Blindness

In its most pedantic definition, an ED tracking system is a system for tracking things in the ED. Tracking things that, well, things that we need to keep track of. People. Orders. Labs. Consults. Messages from docs. Many different bits of information that are needed to keep the ED running smoothly. One of the reasons […]

Interruptions, Memory and Situational Awareness

“Unless it produces action, information is overhead.” –Thomas Petzinger First, a caveat: vendors of HISs (hospital information systems) and EDISs (emergency department information systems) insist that a tracking system is just one component of an integrated system. They point out that there are interactions between a tracking system and CPOE (computer-based practitioner order entry) systems, […]