Table 1.

Step of HCD process and corresponding documents produced.

HCD phase	HCD step	Design activities	Documents produced
Understand work system	1	Human factors work system analysis of PE diagnosis in the ED	Excel spreadsheet of VTE cues and work system barriers and facilitators
Specify technology requirements	2	Analysis of suggestions for health IT solutions made by ED physicians	Health IT solutions of PE diagnosis analysis summary document
Understand work system & specify technology requirements	3	Interdisciplinary design sessions over one-year for a total of 13.5 h (each session was between 1 and 2 h)	Design session 1 transcript
			Design session 2 transcript
			Design session 3 transcript
			Design session 4 meeting minutes
			Design session 5 transcript
			Design session 6 transcript
			Design session 7 meeting minutes
			Design session 8 transcript
			Design session 9 transcript
Produce design solutions	4	Develop PE Dx mock-up	N/A
Evaluate design solutions	5	Focus groups with four ED physicians (one hour each, interspersed between design sessions) for review of PE Dx mock-up	Focus group 1 transcript
			Focus group 2 transcript
Produce design solutions	6	Build PE Dx in EHR playground	N/A
Evaluate design solutions	7	Heuristic evaluation of PE Dx with 7 participants (HF engineers, physician, IT specialist) for a total of 2 h	Heuristic evaluation final report
Evaluate design solutions	8	Usability evaluation of PE Dx	Team meeting minutes (5/11/18) Team meeting minutes (7/6/18) Email with PE Dx programmer
Produce design solutions	9	PE Dx implemented in ED	N/A
Evaluate design solutions	10	Interview evaluation of PE Dx	N/A
Total documents	17