Competency-based Approach in Expert-heuristic Evaluation of Graphical User Interfaces

This paper is a continuation of a cycle of research aimed at forming a new method for evaluating graphical user interfaces (GUI) using an expert-heuristic method. A combination of expert and heuristic approach is proposed, to detect a wide range of UI/UX problems, ensure the competence of the evaluation and reduce the level of incredulity to the expert. This paper illustrates the possibility of implementing a competency-based approach to form heuristic criteria. The key idea behind the application of such a method, the principle of scoring and the experiments conducted to confirm this hypothesis are described in detail. A practical implementation of the competency-based assessment technique for expert-heuristic assessment of UI/UX is presented. The analysis of the experiment is performed, the key advantages and disadvantages of the considered approach are revealed. Conclusions are made about the applicability of the method for evaluating interfaces of different types.