Comparative usability evaluation of a mobile health app

Ncediso™ is a mobile application currently under development by the Nelson Mandela Metropolitan University. The purpose of the application is to provide information to community healthcare workers (CHWs) who are based in remote areas and who do not have the opportunity to attend regular refresher courses. The end user population has varying levels of digital literacy and therefore the user interface design and associated workflow is of great importance. To ensure that the final user interface not only meets the requirements but is also user friendly, two sets of user interfaces were developed. The purpose of this paper is to report on the requirements for a positive user experience that supports the workflow and leaves the end user with a feeling of satisfaction. To this end, the project set out to evaluate two user interfaces and make recommendations as to which is the preferred design. The paper reports on the findings of a comparative usability evaluation and makes as to the preferred user interface.