Determining the Factors Contributing to Electronic Referral System Adoption by Radiation Oncologists through User-centred Design

This study aimed to utilize usability engineering methods in order to identify facilitators and barriers to electronic referral system adoption by radiation oncologists at Princess Margaret Cancer Centre, and provide recommendations for electronic referral system design. Analyses included workflow analysis of radiation oncologists reviewing referrals, belief elicitation interviews with radiation oncologists, a heuristic evaluation of an existing electronic referral system interface, and cognitive walkthrough of that interface with radiation oncologists. Based on these findings, the system interface was redesigned using mock-up software to address identified usability issues. The existing and redesigned interfaces were compared using observational usability testing with radiation oncologists. The redesigned system interface yielded reduced task times and enhanced user satisfaction as compared to the existing interface. Thus, user-centred design was useful in determining facilitators and barriers to e-referral adoption.MAS