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Creating User Interfaces. (Catch-up XML?) CMS, Usability checklist reports Preparation for user observation studies Blogs, Social Spaces, etc. Homework: try government site. Usability and CMS Reports. Discussion. Usability Methods: http://www.usabilityfirst.com/methods/index.txl.
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Creating User Interfaces (Catch-up XML?) CMS, Usability checklist reports Preparation for user observation studies Blogs, Social Spaces, etc. Homework: try government site
Usability and CMS Reports • Discussion
Usability Methods: http://www.usabilityfirst.com/methods/index.txl • Cognitive Walkthrough is an approach to evaluating an interface based on breaking down and analyzing actions that a user must perform in order to use the system or perform a task. • Focus Groups gather groups of users to get their feedback, initial reactions to a design, and discuss their preferences. Focus groups can be useful for raising issues that may not come out during interviews. • GOMS is a family of techniques for modeling and describing human task performance. GOMS is an acronym that stands for Goals, Operators, Methods, and Selection Rules.
Methods, cont. • Prototyping involves developing representations of a system for testing purposes and can range from simple sketches to almost fully functional systems. • Task Analysis evaluates how the end-user actually uses software or websites. An analyst determines the user goals and tasks, then makes recommendations aimed at increasing efficiency and user-friendliness. • Usability Inspection reviews a system based on a set of usability guidelines. Experts familiar with issues of usability in design perform the usability inspection. • User Testing observes actual users interacting with software or websites. Users are asked to perform tasks while usability experts observe and take note of their actions.
Comment • Usability can't be 'tested in'. • That is, you don't build something and then do a check and sprinkle in usability…. • Vocabulary check and organizational knowledge check can be done (and re-done)
Usability evaluation Effective, efficient, satisfactory • What are the critical tasks to be done? • What is acceptable level of performance? • Measure satisfaction • Ask…ask what? • Return to site (may be easy to check) • In some cases, contribute money (easy to check) • Spread the word (may or may not be verifiable)
Observation studies • Decide on application (site) • Select tasks (2-4) • Determine categories of users (e.g., novice and experienced) • Decide on metrics: time, clicks, asking for help,? Your observation plus • Ask subject how they would compare using this application to other similar ones • Compose short set of questions Refer to previous methods or other places for help
Possible sites • Retail • Tasks: pricing (not quite buying) • Bank, Finance • Determining balance, status of bill payments, last contribution • Government • ?
Survey question ideas • Was this easy, hard, or in the middle? • What was good about this application? • What was bad? • Name another site (application) that is better. • ???
Families of applications • Blogs • Social networking • Facebook, MySpace, other • Twitter • barackobama.com • Youtube • ? Fixed structure providing spaces for individuality Complement to other applications
Default settings … are important design point in many situations • Default vs model • For example, SS#: 999-99-9999 • Blog themes (colors and layout) • Privacy: access to profile
Online Privacy Defaults study • Compared Facebook, MySpace and StudiVZ • Different defaults and practices • Facebook: open to all in networks • MySpace, StudiVZ: open to everyone • StudiVZ leads new users through settings • Most users keep defaults and most of those admit/claim they may not be using settings appropriately.
Expectations • Legal concept (my words) • A business / organization has the right to manage resources how ever they want, e.g., phone, computers, email, network, but employees have expectation of privacy UNLESS organization actively publicizes other policies. • You can and must be told if your email/computer can be examined.
Class exercise recovery.gov • Continues web based practices of Obama campaign (and also Obama's first legislation as senator) • What are objectives? • Who are users? • Still early, but what is your assessment?
Classwork/Homework Government sites • Find the site of an elected representative • Evaluate how easy it is to determine • Position on specific issue • When he/she will be speaking • General services • ? • Caution: find official site not campaign sitejohnhall.house.gov NOTwww.johnhallforcongress.com