Table 1:

Heuristics used to assess the EMMA® Telemedicine Delivery Unit

Nielsen	National Library of Medicine
Simple and natural dialogue*	Only use sans-serif typeface, 12–14 point, medium or bold weight, double spaced, left justified
Speak the user’s language
Minimize the user’s memory load*	Avoid blue, yellow and green in close proximity
Be consistent
Provide feedback	Use light background with dark text or dark background with light text and avoid patterned backgrounds
Provide clearly marked exits
Use good error messages
Prevent errors
Provide shortcuts†

^*Heuristics also found in the NLM list of heuristics;

^†Nielsen heuristic intentionally not studied.