Evaluating the Effectiveness and Efficiency of A Website Using Cognitive Walkthrough Method

The quality of a website is said to be good if the display has a combination of elements consisting of system design, content on the system, navigation, and functionality on the system so that the website layout is aligned and balanced. Therefore, an assessment is needed from the user side who wants to see if the website is good or still some bugs that can be fixed later. The method used in this research is a cognitive walkthrough, which involves users in assessing the usability of a website. This research aimed to identify and analyze problems that users face accessing the sampled website and also provide recommendations and suggestions for improving the user interface. The results show that the proportion the effectiveness and efficiency obtained by 64% and 66.31%. It is below the standard set by Jeff Sauro of 78%. Besides that, the majority of participants failed in the fourth task scenario (ST4: finding address and contact us information) and found errors in the second task scenario (ST2: searching for company profile information) and the third scenario (ST3: finding product information). It was found that the proportion of error rates in the ST2 and ST4 are 40% and 100%. Moreover, the ST1 and ST3 task scenarios have error rates below average, by 0% and 13.33% respectively.