Table 2:

Techniques to reduce wrong patient selection, with our estimates of the level of effort and safety impact (TBD = to be determined). Techniques with high estimated safety impact and low estimated effort are highlighted with bold text. The In-demo checkmarks (x) indicate which techniques are demonstrated in the prototype or video.

Task	User Interface Technique	Estimated Effort	Estimated Safety impact	In demo?
Recall patient	Use patients’ photos and other information	HIGH	HIGH	x
	Show the floor plan	medium	medium	x
	Provide a personalized list of patients	low	medium
	Allow sorting	low	low	x
	Allow filtering	low	low	x
	Allow categorical grouping	low	low	x
Select patient	Provide clues that similar names exist	HIGH	HIGH	x
	Use RFID technology	HIGH	HIGH
	Always show patient’s full name	low	HIGH	x
	Consider ID reentry	low	medium
	Include buffer space between rows	low	medium	x
	Increase row height	low	medium	x
	Highlight row under cursor	low	HIGH	x
	Consider using a 2D grid instead of a list	medium	low
Verify selection	Highlight on departure	low	HIGH	x
	Highlight on arrival	low	medium	x
	Use animated transition	low	medium	x
	Use a visual summary of the patient history	medium	TBD
Place order	Keep the patient header visible at all times	low	medium	x
	Maintain consistency between screens	low	low	x
	Use clinical decision support	HIGH	HIGH
	Consider side-by-side display of detailed patient information and order information	medium	TBD
Confirm order	Include the identity of the patient in Submit button	low	HIGH	x
	Consider placing the submit button near the patient information	low	medium	x
Report error	Report errors with proper feedback	medium	TBD
	Speed up placing the same order for the correct patient	HIGH	Low