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User System Interface CSC 8570-001

This course, instructed by Robert E. Beck, delves into Human-Computer Interaction (HCI) by examining design principles, user interface models, and user experience issues. Topics include the history of computing devices, common interactions, and the practical application of interface design. Activities involve research projects, presentations, and exploring real-world user-system interaction problems. Students will engage in discussions about design effectiveness and usability challenges, equipping them with the necessary skills to critically analyze and propose effective user interfaces in various contexts.

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User System Interface CSC 8570-001

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  1. User System InterfaceCSC 8570-001 Fall 2010 Instructor: Robert E. Beck

  2. Introductions (1) • Information sheet • Questionnaire: student information • Questions • Who invented the computer mouse? When? Where? • What battery operated devices do you have with you tonight? • What (computer-based) POS systems do you typically encounter as a customer in a standard week? • What process would you use to find the latitude and longitude of the statue of Gregor Mendel on the plaza in front of the Mendel Science Center?

  3. Introductions (2) • Name • If working • For what company? • In what capacity? • If a full-time student • Plans after graduation • Describe the user interface of the first computer you used.

  4. Battery Operated Devices • Cell phone • Watch • Calculator • Laptop • iPod • Remote car key • Bluetooth headset • iPhone, droid, Blackberry, windows mobile • Remote house security • Flashlight • Laser pointer • Pedometer

  5. Goals • Developing design principles • Investigating models and theories • Creating evaluation processes • Experimentation • Opinion • Outlining an effective design process—interface engineering • Proposing interface designs

  6. Themes (1) • Hierarchy of design principles • Models • Theories (or theory) • Awareness • Mental models • Common interactions • Microsoft vs. Apple vs. others • General knowledge

  7. Themes (2) • Multidisciplinary approach • Frontiers of HCI • Definitions, use of words • Examples

  8. Strategies (Ways of Knowing) • Create concept maps for reading assignments • Combine individual maps • Slip-of-paper (SOP) questions and surveys • Summarize results • Lectures, sometimes • Discussion, always • Argumentation, when appropriate

  9. Strategies (2) • Examples • Careful reading of research and survey articles • PowerPoint as a guide • Edited during class • Posted after class on course web site

  10. Activities • Research project • Report • Presentation • Poster • Article presentation • Web-based project • Exercises • Experiments • Exam – in two parts • Second part: December 14

  11. Responsibilities • Attendance • Reading • Team support • Dialog with classmates and instructor

  12. Hot TopicsBurning Questions Time for your thoughts • Pair up by twos • For the next few minutes, write down as many issues or problems in user-system interaction as you can.

  13. Issue Summary • How do we do this?

  14. Hot Areas; Burning IssuesThe List • Errors made through inadvertent gestures, e.g. iPad, Wii • Bad default choices; not checking device properties, e.g. zoom setting • Discrepancies between presentation and function, e.g. bad choice of icons • Error cost of wrongly pressed, chosen widgets. • Non-intuitive interfaces to systems, e.g. synching iPod and iTunes • System time-outs • Discoverability of functionality, especially advanced features • Foreshadowing completion of tasks

  15. Hot Topics: Others’ Ideas • CHI 20XX topics • HCIL presentations • Interactions

  16. Landscape of the Field • Taxonomy • Ontology

  17. Sources • ACM Digital Library • Conference proceedings (MSC 159) • The Web—but be careful • The course web site • University HCI labs, e.g. • U of Maryland www.cs.umd.edu/hcil • Popular press • Information Week • Financial Times • Falvey Library reference desk

  18. Sources (2) • Steve Krug, Don’t Make Me Think: A Common Sense Approach to Web Usability, 2nd Edition • Jeff Johnson, GUI Bloopers 2.0: Common User Interface Design Don'ts and Dos • Jakob Nielsen, Designing Web Usability

  19. Contacts • PhillyCHI – Philadelphia region chapter of SIGCHI • SIGCHI – ACM Special Interest Group on Computer Human Interaction

  20. Conferences • ACE – Computer Entertainment Technology • AVI – Advanced Visual Interfaces • CHI – Computer Human Interaction • CSCW – Computer Supported Cooperative Work • DSV-IS • HCI International • HCIL Symposium (U Maryland) • HICS • Hypertext

  21. Conferences (2) • IDC • Interact • IUI – Intelligent User Interfaces • IVA • SG – Smart Graphics • SIGIR – Information Retrieval • UIST – User Interface Software Technology • User Modeling • World Wide Web

  22. Tools • Concept maps: • http://cmap.ihmc.us • EndNote • Task models: • ConcurTaskTrees Environment • Help compiler • Treemap: • http://www.cs.umd.edu/hcil/treemap-history/

  23. Tools (2) • UISK: User Interface Sketching Tool • NodeXL

  24. What Do We Mean when we write • USI • HCI • GUI • DMI • IUI • SUSI

  25. User System Interface Human Computer Interaction Graphical Direct Manipulation What Do We Mean By

  26. Eras of HCI • Holes • Command lines • Menus and characters • Widget objects and bit maps • Small devices

  27. iPad • A new small device • Issues of design and user interaction? • Discoverability of functionality • Easy to learn elementary functionality • Lack of multitasking, only single window • Keyboard design • Accidental gesture interpretation • Inconsistent interfaces across apps (extends to all software)

  28. iPad(5) • Displaying non-mobile web sites • Pinch zoom • Scroll to end? • Is it trying to be a computer?

  29. What to Study: Potential Topics • Tiny interfaces: Cell phones, smartphones, PDAs, ultramobile PCs, house systems, POS systems • Gesture-based input; pen interfaces • Intelligent interfaces (cf. IUI) • Task analysis (e.g. buying a ticket) • Collaboration tools/systems (cf. CSCW) • Personalization; recommender systems • Friendly forms • Creating digital libraries • Mashup tools • Web-based interfaces to systems, to information, for task completion

  30. Reading a Research Paper • Expect to find • Abstract • Introduction • Description of experiment • Discussion of results • Conclusion • Proposals for future work • References

  31. Reading (2) • Try the abstract—though it may be too abstract, too condensed. • Read the introduction until you get confused. • Read the conclusion. • Look at the reference list—hoping to find papers you already know about. • Check the headings and first few lines of the middle sections for ease of understanding.

  32. Reading (3) • Examples: • Mackenzie: Unipad text entry • Soukoreff and Mackenzie: Metrics for text entry errors

  33. Next Time • Read Wigdor & Balakrishnan, Tilt Text: using tilt for text input to mobile phones. (You can get a copy of the paper from the ACM Digital Library.) • Evaluate its structure and content as a research paper. • Identify design principles for user interfaces based on the paper. • Hand in your solution to the table exercise.

  34. Next Time (2) • Install EndNote on your computer and record the references from the Wigdor paper in it. • EndNote has been available for loan from the library. Check with the Reference Desk • Install the CMAP software on your computer and capture the principal ideas of today’s lecture in it.

  35. Next Time (3) • What is the difference between taxonomy and ontology? • How is the field of HCI divided?

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