1 / 16

Early Design Process

This presentation focuses on the early design process for a pizza ordering system, emphasizing Human-Computer Interaction (HCI) principles. It covers user tasks, including ethnographic observation, scenario development, and task analysis. Key design guidelines from Shneiderman and Nielsen are highlighted, incorporating design metrics and heuristic evaluations. Participatory design is discussed to enhance user satisfaction, along with early evaluation techniques such as role-play and Wizard of Oz testing. The goal is to create a user-friendly interface that meets diverse user needs.

ziv
Télécharger la présentation

Early Design Process

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related