Abstract:
In Nigeria, the mobile health trend is gradually improving and generally
upgrading the way healthcare services are being rendered. Assessing the usability of
these apps is still a major task as a result of the many attributes embedded in most
usability models. In other to rank some of these attributes, a Multi-Criteria Decision
Making technique (MCDM) was used. The attributes ranked were adopted from the
Enhanced Usability Model (EUM) which was designed based on the People at the
Center of Mobile Application Development (PACMAD) model and the Integrated
Measurement Model (IMM). Attributes were ranked using their priority weights
based on the Triangular Fuzzy Numbers (TFN) and Fuzzy Chang extent analysis
model. Results of evaluation showed that effectiveness and efficiency had the
highest priorities with 40% and 33% while satisfaction, user interface aesthetics and
universality had the lowest ranks. Three mHealth apps were analyzed and results
showed that Omomi had the highest ranking with a weight of 41%, Find-A-Med
ranked second with a weight of 30% while Hudibia ranked lowest with a weight of
29%. In conclusion, it was established that the mathematical technique used is a
powerful tool for analyzing human decision-making process. Future works would
consider other MCDM models and comparisons done.
