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    KW001 KW001 Presentation Transcript

    • FINAL Introduction Interaction Diagram Personas & Scenarios Comparative Evaluation Heuristic Evaluation FINAL User Survey SI622: Team Knetwit April 17, 2009 Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL  Introduction Introduction to Knetwit Interaction Diagram •  Knetwit.com is a knowledge sharing website that allows users to Personas & join classes, share notes with other users, and also provides the Scenarios option to create study groups within these classes. –  Find note Comparative Evaluation –  Upload note –  Request note Heuristic Evaluation –  Store –  Comment User Survey –  Message Usability Testing –  Leaderboards –  Study Groups Findings & Recommendations –  Flashcards Incentives & Ethics •  Incentives –  Koin Strengths –  Knowledge points Comments –  Community points
    • FINAL Introduction Interaction Diagram Personas & Scenarios Comparative Evaluation Heuristic Methods Evaluation User Survey Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Interaction Diagram  Interaction Diagram •  Helped provide a high-level understanding of the the systemʼs hierarchy. Personas & •  Showed the complexity of the siteʼs architecture and all possible pathways Scenarios through the system. Comparative Evaluation Heuristic Evaluation User Survey Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Personas & Scenarios Interaction Diagram •  Generated personas & scenarios individually  Personas & Scenarios •  Target population: college students, registered Knetwit users Comparative Evaluation •  Rationalized situations in which Knetwit features could be used by undergraduate and graduate students Heuristic Evaluation User Survey Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Comparative Evaluation Interaction Diagram •  Compared to 5 knowledge sharing websites and Ctools Personas & Scenarios •  Analysis revealed additional insight  Comparative –  Aesthetic design Evaluation –  Social networking Heuristic –  Organization Evaluation User Survey •  Direct feature comparison Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Heuristic Evaluation Interaction Diagram •  Four individual evaluations using Nielsenʼs 10 Usability Heuristics (1994) •  Personas and scenarios as reference for likely interactions on the site Personas & Scenarios •  Begin to focus on specific issues related to usability Comparative Evaluation 1.  Visibility of system status 2.  Match between system and the real world  Heuristic Evaluation 3.  User control and freedom 4.  Consistency and standards User Survey 5.  Error prevention 6.  Recognition rather than recall Usability Testing 7.  Flexibility and efficiency of use 8.  Aesthetic and minimalist design Findings & Recommendations 9.  Help users recognize, diagnose, and recover from errors 10.  Help and documentation Incentives & Ethics Severity Rating Scale 0= Do not agree that this is a usability problem Strengths 1= Cosmetic problem, fix only id extra time is available 2= Minor usability problem, low priority Comments 3= Major usability problem; important to fix 4= Usability catastrophe; imperative to fix
    • FINAL Introduction User Survey Interaction Diagram •  28 Questions Personas & –  Demographics Scenarios –  Usage Patterns Comparative –  Popular Features Evaluation •  Knetwit admins sent survey to the user base Heuristic •  Users volunteered without incentive. Evaluation •  65 respondents, 184 abandon •  Resulted in great demographic  User Survey data, discovery of power users Usability Testing and preferences in feature discrimination Findings & •  Open-ended questions Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Usability Testing Interaction Diagram •  Pilot to debug the test Personas & •  5 undergraduate college students of varying ages and majors Scenarios •  8 tasks that users would likely attempt on Knetwit Comparative •  Moderator Evaluation •  Data Logger Heuristic •  Users encouraged to verbalize and explain behaviors Evaluation •  Camtasia screen capture and audio recording User Survey  Usability Testing Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Interaction Diagram Personas & Scenarios Comparative Evaluation Heuristic Findings and Recommendations Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Find a Note Interaction Diagram Findings: Personas & •  Main functionality of the site Scenarios •  Survey shows that 85% of survey participants use the Find Note feature. Comparative Evaluation Heuristic Evaluation User Survey Usability Testing •  62% of survey users stated that the “Do not upload”  Findings & Recommendations •  During usability testing 3 of 5 (60%) failed the task to find and download a note. Incentives & Ethics Strengths Comments
    • FINAL Introduction Find a Note Interaction Diagram Findings: Personas & •  Searching Capability Scenarios –  No control of freedom (#3) –  Search renders a broad range of Comparative Evaluation results that do not closely match the original search criteria Heuristic Evaluation •  Join a Course –  No control of freedom (#3) User Survey –  Lacks flexibility and efficiency of use Usability Testing (#7) –  Users are required to join courses in  Findings & order to view course notes. Recommendations –  Difficult to select a course section if a user does not know the exact year Incentives & Ethics and term that the course was offered Strengths Comments
    • FINAL Introduction Find a Note Interaction Diagram Recommendations: Personas & •  Standardize the database to pull course lists from universities. This will Scenarios enhance the usability of the “Find a Note” feature. Comparative –  Minimize user confusion and frustration Evaluation –  Avoid inconsistent naming conventions –  Prevent course duplication Heuristic Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Upload a Note Interaction Diagram Finding: Personas & •  Slight error rate Scenarios –  1 of 5 users failed the task Comparative Evaluation •  Large task time range Heuristic –  40 – 320 seconds (4 minute 40 second range) Evaluation User Survey •  Users noticed lack of organization in course list –  No standard course names Usability Testing –  Confusing pagination  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Upload a Note Interaction Diagram Recommendation: Personas & •  Use a scrollable menu for course lists Scenarios Comparative Evaluation Heuristic Evaluation User Survey •  Use AJAX or similar technology to generate contextual course lists Usability Testing –  Reduces guesswork and confusion  Findings & Recommendations •  Organize course list by subject Incentives & Ethics •  Remove “Join” before course names Strengths Comments
    • FINAL Introduction Aesthetics and Layout Interaction Diagram Finding: Personas & •  4 of 5 users tested found the layout to be “busy” or “cluttered” Scenarios •  Aesthetics affects usability because the visual design promotes or hinders Comparative successful completion of a task Evaluation •  Users like color scheme and tabbed navigation at the top of the screen Heuristic Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Aesthetics and Layout Interaction Diagram Recommendation: Personas & •  Apply the tabbed navigation design to user profile page Scenarios •  Move the 8 tabbed boxes to the top of user dashboard Comparative •  Allow for same functionality with less visual noise Evaluation •  Keep the color scheme and graphics. Heuristic Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Social Networking Interaction Diagram Findings: Personas & •  Facebook 96%, MySpace 46%, Twitter 27%, Digg 18%, Delicious 13% Scenarios Comparative Evaluation Heuristic Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics •  Feature Usage - Find note 85%, Upload note 61%, 26%, Study groups, Strengths 26% Store, 24% Invite friends, 19% Comments, 17% Messages, 15% Requests Comments
    • FINAL Introduction Social Networking Interaction Diagram Recommendations: Personas & •  Add features that allow students to rate courses or professors or ask Scenarios course questions. Comparative •  Add a calendar feature that allows students to add events related to Evaluation specific courses (ex. Test, study groups meetings, etc) Heuristic Evaluation User Survey Usability Testing  Findings & Recommendations Incentives & Ethics Strengths Comments
    • FINAL Introduction Incentives & Ethics Interaction Diagram Findings Personas & •  Survey showed that Koin is an incentive (75%); 67% plan to redeem Koin Scenarios at store Comparative Evaluation Heuristic Evaluation User Survey Usability Testing Findings & Recommendations •  Survey showed gap between people taking notes by hand (74%) and likelihood of transcription (27%)  Incentives & Ethics •  One user in user testing had problems with the ethics of Knetwit Strengths Comments
    • FINAL Introduction Incentives & Ethics Interaction Diagram Recommendations: Personas & •  More research into ethics and incentives Scenarios •  Add more information about ethics in the FAQ and keep the site as Comparative academic and transparent as possible Evaluation •  Better incentivize note transcription •  Better incentivize adding friends from Facebook Heuristic Evaluation •  Be sure that incentives are on par with other websites User Survey Usability Testing Findings & Recommendations  Incentives & Ethics Strengths Comments
    • FINAL Introduction Strengths Interaction Diagram •  Generally, users liked the idea of the being able to share and Personas & collaborate with students online. Scenarios •  Knetwit offers a wide range of functionality that provides college students collaborative learning tools. Comparative Evaluation •  Knetwit developers are quick to implement new features. Heuristic Evaluation User Quote: User Survey Usability Testing Findings & Recommendations Incentives & Ethics  Strengths Comments
    • FINAL Introduction Comments Interaction Diagram •  Questions/ Comments? Personas & Scenarios Comparative Evaluation Heuristic Evaluation User Survey Usability Testing Findings & Recommendations Incentives & Ethics Strengths  Comments