Abstract
Humans develop facial expressions to transmit a variety of meanings in a variety of settings. The facial expression is in charge of transmitting not just concepts or information, but also sentiments. What makes emotional communication fascinating is that it seems as if certain of emotional states are biologically programmed and are exhibited in much the same way among all individuals of all societies. Humans employ facial expressions in a variety of circumstances, ranging from reactions to environmental events to specific linguistic formulations under sign languages. This research presented the experimental effort carried out in order to examine creatively the viewpoints of individuals on distinct facial expressions and body language (neutral, happy, thinking, hand clenching, arms folded, chinstroking, and arms pointing) when used to deliver different feedback types in an e-feedback interface. Also, it investigated usability aspects and the engagement of users with feedback in platforms that presented feedback types through three different e-feedback interfaces. The first interface incorporated face-to-face (video) vibrant facial structure while generated voice with text was used for the second interface. In the third interface, the interface made use of half body animated avatar with facial expression. The assessed usability measures included efficiency where the task is measured in completing time, effectiveness where the task is measured correctly completed, and user satisfaction.