CSC 306 HCI and User Interface Design CA 2021

About this paper

Continuous Assessment Test for CSC 306, Department of Computer Science, University of Buea, May 2021, 60 minutes. Question 1 covers human vision (true/false questions on rods, cones, and light perception), the anatomy of sound transmission through the ear, visual angle comparisons under changing distance and size, and the distinction between ideograms and smileys in emoji design. Question 2 covers the objective of the T9 predictive-text algorithm, generating candidate words from a given key sequence, comparing against multi-tap key sequences without the algorithm, and identifying the interaction model (states and transitions) depicted in a diagram -- reconstructed as Abowd and Beale's Interaction Framework, based on the legible remainder of a question whose top was cut off in the scan. Question 3 covers the distinction between usability and user-experience goals, a table of usability goal names and descriptions (effectiveness, safety, learnability, memorability, and software quality from both a general and an HCI perspective), the goal of the human processor model, the roles of its three subsystems (perceptual, motor, cognitive), and the difference between the sensation and perception stages.