A Comparative Analysis of Website Usability Evaluation Techniques
Nengak Iliya Sitlong, Abraham Eseoghene Evwiekpaefe, Martins Ekata Irhebhude · World Journal of Innovative Research · 2022
Most system interfaces do not meet user intuition in terms of both context and the underlying actions thereof, hence reducing user's task execution efficiency.This translate into the amount of time taken to learn, recall and complete the procedure for certain task with respect to a given system or device.It was in the light of this that this work took a look at the existing human computer interaction (HCI) usability testing techniques with the intention of empirically establishing which among cognitive walkthrough, heuristic evaluation and user group is the most efficient in identifying and correcting system's usability problems.To create the research pathway a detail review of related work was undertaken to identify the lacuna therein for the research direction.A case study of the Nigerian Defence Academy (NDA) website was used as a specimen for administering the usability test methods and the outcome of each was documented.The research methodology adopted a purposive and stratified sampling technique to reduced biased and increased reliability of the representative sample chosen for this research.The sample chosen was an extract of final year undergraduate students of Federal College of Education (FCE) Pankshin, an affiliate of University of Jos, Plateau State, Nigeria.The students have taken a course in Human Factor in System Design, which provided them with adequate training in usability test techniques, 20 out of the total 30 students with the requisite skill were chosen to undertake the test process.The data collated passed through paired sample T-test procedure of the compare-mean analysis with confidence interval percentage of 95%, using the IBM Statistical Package for the Social Sciences (SPSS) version 26.The outcome of the T-test showed that the respective means of cognitive-walkthrough, heuristic-evaluation and user-group are 5.750, 4.900 and 6.350, with respective correlation coefficients of 0.192, 0.54 and 0.624.This shows a strong relationship between each pair of the test techniques.However, user-group usability test technique with the highest mean accuracy interval of 1.450 is the best in terms of performance relative to the other two techniques.Finally, the result of the analysis as well as charts created and the participant's findings were summarized thus proffering way forward and recommendations for the improvement of system and user interaction.