USABILITY Student Anna Sysova Group Minsk 2016 BELARUSIAN STATE UNIVERSITY OF INFORMATICS AND RADIOELECTRONICS

Plan:  What usability is  Why usability is important  Usability evaluation basics  Usability goals  World Usability Day

User’s benefits from usability  Satisfied  Not frustrated  Enjoy interacting  Achieve their goals effectively and efficiently  Cultivate confidence and trust

Provider’s benefits from usability  Reduced costs  Return on investment  Reduced user errors

Usability evaluation basics

Usability evaluation methods Evaluation methods Brain- storming Focus Groups Surveys Usability testing Others

Measurable Usability Goals GoalWhat it MeasuresExample Benchmark How long it takes to complete the task 95% of users will be able to use the alphabetical list to find terms in the glossary in under 2 minutes The number of attempts to complete the task 95% of users will be able to locate the latest blog with less than 2 false clicks The percentage of visitors who completed the task 90% of users will be able to find the Usability Guidelines database How satisfied the visitor was with the process of completing the task 95% of users will rate the experience of using Usability.gov a four or five on a one to five scale where five is the best. Speed Accuracy Overall Success Satisfaction

Measurable Usability Goals GoalWhat it MeasuresExample Benchmark Speed How long it takes to complete the task 95% of users will be able to use the alphabetical list to find terms in the glossary in under 2 minutes Accuracy The number of attempts to complete the task 95% of users will be able to locate the latest blog with less than 2 false clicks Overall Success The percentage of visitors who completed the task 90% of users will be able to find the Usability Guidelines database SatisfactionHow satisfied the visitor was with the process of completing the task 95% of users will rate the experience of using Usability.gov a four or five on a one to five scale where five is the best.