1. HCI/ECT 441 Dr. Craig Barnes cbarnes@cs.depaul.edu Office Hours: Tues 5:00pm-5:45pm Tues 9:00pm-9:45pm Office: ?

2. ECT/HCI 441 - Course Info Course Web Site: www.evl.uic.edu/barnes/HCI441 Check it often.

3. Course Grading zHomeworks:40% zUser Testing: 15% zFinal:35% zIndividual Contribution: 10%*

4. Disciplines contributing to HCI

5. Web Usability Problems

11. User Centered Development Differs from traditional software development: zUser Centric zInterdisciplinary zHighly iterative

12. User Centered Development Initial Stages: zNeeds Analysis zUser and Task Analysis zFunctional Analysis zRequirements Analysis

13. Needs Analysis Simple Description of zType of System zAudience

14. User Analysis Characterizes potential user of site: zGeneral Demographics zContext of Use

15. User Analysis Benefits: zCost reduction in: ydevelopment & maintenance ySupport yTraining zIncreased sales

16. User Analysis zKey: Know your user zAdvice: Site developers are NOT users

17. User Analysis General Characteristics: zLearning Style zTool Preference zPhysical Differences zCultural Differences

18. Learning Style How do users learn? zRead then Do zDo then Read

19. Tool Preference Set of tools users are familiar with: zDrop Down menus zComplex Searches Find the Least Common Denominator

20. Physical Differences Accessibility issues: Physical Disabilities Color Perception Perception of small objects Smaller buttons require finer motor control

21. Cultural Differences zGeographical or Not: zEducation zProfession zCorporate Culture

22. Specific User Characteristics Type of users actively visiting site zWhy they use it zWhat they are doing zHow they are doing it

23. Knowledge of Jobs If site is part of work environment: zHow do users do their job? zUnderstand fit in workflow? zSpecialized vocabulary

24. Application Familiarity Determine users’ technical proficiency: zNovice zAdvanced Beginner zCompetent Performer zExpert

25. Gathering Information Who do you ask? zManagers? zDevelopers? zPrimary Users zSecondary Users

26. Gathering Information Places to find information: zUsers zCustomer Service zTechnical Support zMarketing

27. Task Analysis Know what users do: zGoals zTasks zActions

28. Task Analysis Build description of users’ duties: zWhat tasks are performed zWhy perform them zHow tasks are performed

29. Goals zStarting point for task analysis zWhat user want to accomplish zIndependent of technology

30. Tasks Mechanism for accomplishing goals zCan be technology dependent zComposed of sub-components called Actions

31. Granularity zLevel or amount of detail in a task zBreak task into successively finer steps zDepends on nature and scope of site

32. Granularity zWorkflow Analysis zJob Analysis zTask List z Task Sequences z Task Hierarchies z Procedural Analysis Successively finer levels of granularity: