INF3720 - Past Exam Papers

provides - working strategy and framework of general concepts and their interrelations  Metaphors and analogies help people understand what product is for and how to use it for an activity (e.g.: browsing, bookmarking);  The concepts people - exposed to through the product, includes the task-domain objects they create and manipulate, their attributes, and operations - be performed on them (e.g.: saving, revisiting, organizing);  Relationships between those concepts (e.g.: whether one object contains another, the importance of actions to others, and whether an object is part of another);  Mappings between concepts and user experience - product designed for (e.g.: revisit through looking at list of visited sites, most frequently visited, or saved websites).  Establishing requirements – in system design - must know who target users are and what kind of support - interactive product provides This - fundamental to a user-centered approach and important in interaction design Achieved through data gathering and analysis  Designing alternatives – is core activity of designing produces ideas for meeting requirements be broken up into two sub-activities i.e. conceptual design and physical design  Prototyping – best way for users to evaluate = to interact with system Achieved through prototyping different techniques i.e. paper-based prototypes, quick and cheap to build and role-playing - users get real sense of product interaction  Evaluating – is process of determining usability and acceptability of a product /design Measured many ways i.e. number of errors users’ make - using it how appealing it is and how well - matches requirements evaluation not replace testing and quality assurance - complements and enhances  Controlled settings involving users (labs & living labs) users' activities – controlled – to test hypotheses and measure/observe certain behaviours main methods = usability testing and experiments pros and cons = good at revealing usability problems - poor at capturing context of use  Natural settings involving users (online communities & public places) little or no control of users' activities to determine how the product - used in the real world main method = using field studies pros and cons = good at showing how people use technologies in intended setting but are expensive and difficult to conduct  Any settings not involving users - consultants & researchers critique, predict, and model aspects of interface to ID most obvious usability problems methods include inspections, heuristics, walkthroughs, models, and analytics. pros and cons = cheap and quick but can miss unpredictable usability problems & finer aspects of user experience