Design Method EssaySketching Prototypes

Webkit Tangible UI: A Casestudy of iterative prototyping. Stringer et al (2005)

Integrate technology into the social fabric of everyday life

designing for social consequence

In-situ iterative prototyping

dissapear into environment

Iterative design particularly well suited for TUI design

quick, inexpensive test of many to evaluate with physical context of use

initial prototype that invalidated idas of how TUI could help

Explore app space without commitng too much effort into software or hardware development

Prolonged periods of iterative design helps the designer understand users and best use in theenvironment. in this case, class room, what makes it invisible

this paper supports understanfing og designing for ubiquiious technology

Prototyping: Generating ideas or Cargo Cult Design?Holmquist 2005

Prototypes envision functionMock-ups envision form

Interaction designer works between both these worldsand as such must lend techniques from both

Cargo cult design - fooling the users to think it is the real thing?or Creating a representation without sufficiant knowledge of how it would actually work, or presentinga representation without acknowledging such knowledge

These representations must give a realistic impression inteded of the end product

Mockups/prototypes allow the freedom to explore without the the limitations of current technology

Even a simple representation fairs useful if it turns out to give new insights

to avoid cargo cult design a representation should be presented honestly as to what it is, an allow exploration in design

Getting the right design and the design right: testing many is better than one. - Tohidi et al

giving alternative design solutions allows better feedback

good at identifying problems, not provising solutions.

Sketching interfaces: Toward more HIDLanday & Myers (2001)

a computed based sketching tool - SILK

supports

copy/paste can't do as easy on paper

excellent first draft tool

no need for the visual design

encourages overal stucture and interaction rather than look and feel

sketching supports communication

Allows creativity by not forcing one to concentrate on unnecessary precision

User Sketches: A Quick, Inexpensive, and effective way to elicitMore reflective user feedback - Tohidi et al 2006

approach based on enabling the users to sketch for reflective, not reactive feedback

Usual usability testing techniques elicit criticisms & comments,identifing problems, but DONT faciliate reflection to help generate ideas and alternative solutions