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User System Interface CSC 8570-001

User System Interface CSC 8570-001. Fall 2010 Instructor: Robert E. Beck. 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?

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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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