TION 2 [25 MARKS] Help or User Support is crucial because human made products tend to have problems and human have various ability or skill. Assume that you are going to develop a web application system. The system will help the users to manage some process in management. Identify and describe FIVE (5) most suitable user support approach to be implemented [10 Marks] Based on the new design, explain FIVE (5) usability attributes and the measurement for each attribute. [15 Marks] Answer: ** Each attributes is given 1 mark ** Measurements for each attribute is given 2 marks Usability Attributes Measurements Learnability -ease of learning for novice user pick novice users of system, measure time to perform certain tasks. Distinguish between no/some general computer experience. get sample expert users, measure time to perform typical tasks. get sample casual users (away from system for ertain time), measure time to perform typical tasks. Efficiency - steady-state performance of expert users Memorability -designs are ease to memorize by casual users Errors -error rate for minor and serious errors Satisfaction - how pleasant system is to use count minor and serious errors made by users while performing some specified task. ask users' subjective opinion (questionnaire), after trying system for real task