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Concepts and Prototypes

Concepts and Prototypes. CS352. Announcements. Notice upcoming due dates (web page). Where we are in PRICPE : P redispositions: Did this in Project Proposal. RI : R esearch was studying users. Hopefully led to I nsights. CP : C oncept and initial (very low-fi) P rototypes due next.

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Concepts and Prototypes

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  1. Concepts and Prototypes CS352

  2. Announcements • Notice upcoming due dates (web page). • Where we are in PRICPE: • Predispositions: Did this in Project Proposal. • RI: Research was studying users. Hopefully led to Insights. • CP: Concept and initial (very low-fi) Prototypes due next. • Evaluate throughout, repeat iteratively!!

  3. Concepts • Pre-prototype. • Explore how to address some aspect, eg: • The interface metaphor (eg, desktop, ...) • The paradigm or device (eg, WIMP, wearable, ...) • The interaction type (eg, instructing, conversing, manipulating/demonstrating, or exploring) • This is a brainstorming-like tool • Consider several concepts. • There should be some bad ideas! • 1. don’t get too attached to a concept and 2. don’t spend too much time on any of them.

  4. Concept Examples:Hardware Platform • Examples from Mike Madison’s homelessness project. (He ultimately scrapped all of them.)

  5. Concept Examples:Aspect= “Show energy usage”

  6. Concept Example (but too polished):Aspect=Window Management

  7. Concept Examples (but too polished):Aspect= “Select” Paradigm

  8. Concept Example (but too polished):Aspect= “Quick Entry”

  9. Concept Examples (but too polished):Aspect= “Alert Style”

  10. Concepts Can Also Explore Metaphors • Remember from Perceptions lecture: • Brains store “frames” (familiar patterns), which “prime” what we perceive. • eg: Homes have bathrooms. • eg: Ventriloquism. • Metaphors: leverage framing & help users build a mental model. • eg: Metaphor is like a Java class. • eg: Computer desktop is like a desktop. • “Variables/types in it”: folders, trash can, … • “Methods”: You can put documents into folders, label them, discard them, ...

  11. In-Class Activity • In your teams: • Sketch >=3 concepts for the on-line grocery. • Exploring the dimension/aspect of: • Quick entry (of groceries I plan to buy) • At least one should use a “list” metaphor. • (Remember, lists have “variables” and “methods”)

  12. Is metaphor good? • Questions to try to decide: • Does it help? • How much structure does the metaphor provide? • How well does the metaphor fit the problem? • are there leftover bits of the metaphor? • are there leftover bits of the problem? • if yes, can the metaphor extend to cover them? • Is it easy to represent? • Will your audience understand the metaphor?

  13. Prototypes • To flesh out a concept with enough detail • to communicate/understand user experience in detail. • in this class: for our use to understand user problems with our ideas. • can also be used to communicate with boss, news media, etc... • Lo-fi prototypes ideal for some purposes: • cheap • yet force enough attention to detail.

  14. Higher fi prototypes • Useful: • When: AFTER get through lower-fi ones first. • Why: Get at details of design (layout, icons, colors etc) • Front end finished with widgets polished up, but behavior/data is hard-coded (no back end). • For boss, at trade shows, etc.

  15. Lo-fi prototypes (we will start here) • Just how lo-fi can one go • The lowest-fi: paper • At first: sketches as screen-transition diagrams. • Later can be more polished. • Static paper vs. “interactive” paper. • Example: Wizard of oz: on the computer, but human fakes in the computer logic. • There are tool-supported variants of these. • Details of each next...

  16. Paper prototypes • Static paper • For communicating among team. • Usually done as a sketched storyboard or sketched “state machine”. • Example: lo-fi paper prototypes (next 2 slides). • Hi-fi prototype (slide after those two)

  17. Static Low-fi Prototype #1(Screen transition diagram)

  18. Static Low-fidelity prototype #2

  19. Static high-fidelity prototype(Screen transition diagram)

  20. Dynamic Paper prototypes • Dynamic (interactive) paper • For evaluating with user at a very low-cost. • Wizard of oz: on the computer, but human fakes in the computer logic.

  21. Dynamic/interactive paper prototypes (cont.) • Examples: • Example #1: from ML-interaction experiment. • (Next slide). • Example #2 (if time permits): from spreadsheet study (this one has elements of wizard-of-oz) • Example #3: next next slide

  22. Lo-fi interactive prototype set-up with pens, printouts, table

  23. Dynamic lo-fi prototype: Screen #1 From Christoph Neumann’s “Interactive Football” strategy programming environment

  24. Tool-supported prototypes • Low-fi with tool support. • DENIM (click) and CogTool (fig in an upcoming slide): tools for sketched storyboards/states. • Can transition these to nicer, more polished versions.

  25. CogTool Example

  26. Prototyping in this class • In here: • We will begin with static paper (sketched screen transition diagrams), • then iterate from that start using a tool called Mockups.

  27. Backup Slides

  28. Activity • Choose one concept you did for the on-line grocery. • Consider one specific user task: • your user wants to buy ingredients to make lemonade. • Sketch a prototype storyboard/states of your UI: • that shows how your user will accomplish that task in your UI.

  29. CS 352 Prototyping • In here: • We will begin with static paper (sketched screen transition diagrams), • then iterate from that start using a tool called Mockups.

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