To support the surveys, I carried out an in-depth heuristic evaluation on all pages of the platform to identify usability problems in the user interface design.
I modelled my heuristics according to
Jakob Nielsen's 10 general principles for interaction designThis severity of each evaluation principle was documented for each major page of the platform to help prioritise what needs to be addressed. Each evaluation I made came with a recommendation that represented an opportunity for what can be improved from a usability stand point.