A Multi-step Usability Evaluation of a Self-Management App to Support Medication Adherence in Persons Living with HIV.
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PURPOSE Adherence to antiretroviral therapy is essential to HIV management and sustaining viral suppression Despite simplified regimens adherence remains difficult for certain persons living with HIV PLWH There is evidence to support the use of mHealth apps for effective self management in PLWH however a medication adherence app with real time monitoring for this population has not been developed and rigorously evaluated by PLWH We developed a mHealth app WiseApp for HIV self management to help PLWH self manage their health The purpose of this study was to evaluate the usability of the WiseApp METHODS We conducted a three step usability evaluation using 1 a traditional think aloud protocol with end users 2 a heuristic evaluation with experts in informatics and 3 a cognitive walkthrough with end users During the cognitive walkthrough we tested two devices fitness tracker and medication tracking bottle that were linked to the WiseApp RESULTS The think aloud protocol informed iterative updates to the app specifically to make it easier to see different sections of the app The heuristic evaluation confirmed the necessity of these design changes The cognitive walkthrough informed additional updates and confirmed that overall the app and the linked devices were usable for the end users CONCLUSION The results of the cognitive walkthrough with both experts and end users informed iterative refinements to the WiseApp and finalization of a mHealth app for PLWH to better self manage their health