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Early Design Process

Early Design Process. Chris North cs3724: HCI. Presentations. mohamed hassoun, aaron dalton Vote: UI Hall of Fame/Shame?. Today’s Excersize. Design a pizza ordering system. Review. Step1: users tasks Task profiling Design principles and guidelines 5 HCI metrics

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Early Design Process

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  1. Early Design Process Chris North cs3724: HCI

  2. Presentations • mohamed hassoun, • aaron dalton • Vote: UI Hall of Fame/Shame?

  3. Today’s Excersize • Design a pizza ordering system

  4. Review • Step1: • users • tasks • Task profiling • Design principles and guidelines • 5 HCI metrics • Shneiderman’s 8 golden rules • Nielsen’s 10 heuristics • Screen Layout • 3 UI Styles: • dm • menus • com lang

  5. Early Design Process • 1. Users and Tasks • Interview users • Ethnographic Observation • Scenario development • User, Task analysis • Task profiling • 2. Design • Participatory Design • Shneiderman’s OAI: Map objects and actions • 3 UI styles, guidelines, standards • 3. Evaluate • Role Play • Wizard of Oz • Heuristic Evaluation

  6. Interview Users • Fast • Cheap • College students

  7. Ethnographic Observation • Watch users work • Record, analyze

  8. Scenario Development • Write example scenarios of usage • Frat boy throwing party, needs lots of pizza & beer, he wants variety, slurred speech.

  9. User and Task Analysis • Want pizza • 40% 2 person pizza, half/half • 10% Frat boy • Single user, simple meal: drink, how hungry? • Repetetive orders, every week, same as before, variations • Family dinner, # people, aduls vs chidren

  10. Task Profiling

  11. Early Design Process • 1. Users and Tasks • Interview users • Ethnographic Observation • Scenario development • User, Task analysis • Task profiling • 2. Design • Participatory Design • Shneiderman’s OAI: Map objects and actions • 3 UI styles, guidelines, standards • 3. Evaluate • Role Play • Wizard of Oz • Heuristic Evaluation

  12. Participatory Design • Users involved in designing UI • Good for very narrow user classes, tasks • E.g. a scientific discipline that’s hard for designers to understand • If user satisfaction is key • Advantages: • cover users concerns • Disadvantages: • Only covers concerns of participating users • Users don’t know HCI

  13. Combo meal Combo meal Combo meal Whole, Half, quarter $8.99 peperoni

  14. Early Design Process • 1. Users and Tasks • Interview users • Ethnographic Observation • Scenario development • User, Task analysis • Task profiling • 2. Design • Participatory Design • Shneiderman’s OAI: Map objects and actions • 3 UI styles, guidelines, standards • 3. Evaluate • Role Play • Wizard of Oz • Heuristic Evaluation

  15. Early Evaluation • Role Play • Act out scenarios, gauge success • Wizard of Oz • Real users • Act out the system in response to users (don’t help them!) • Paper, stickies, blackboard, … • Heuristic Evaluation • Measure against 5 metrics, Shneiderman’s 8, Neilsen’s 10, Fitt’s law, …

  16. Next • Hw2: • A-K: due today! • L-Z: due thurs • Midterm: feb 26 • Proj 2: design due feb 28 Presentations: proj1 design or UI critique • Thurs: nadine edwards, steve terhar • Next Tues: midterm • Next Thurs: peter hou

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