Mobile Applications 2010

Prototyping

Gunnar Misund

Egg Drop ContainersMobile Applications - Prototyping

Gunnar Misund

Dow et al., The Efficacy of Prototyping Under Time Constraints (2009)

Prototyping aspects

Low <-> High fidelityLab <-> FieldSimulation <-> Real lifePurpose: What kind of evaluation?

Mobile Applications - Prototyping

Gunnar Misund

Prototype, Merriam-Webster

1 : an original model on which something is patterned : archetype2 : an individual that exhibits the essential features of a later type3 : a standard or typical example4 : a first full-scale and usually functional form of a new type or design of a construction (as an airplane)

Mobile Applications - Prototyping

Gunnar Misund

Prototype, MAG

A set of artifacts and procedures demonstrating key aspects of an applicationApproximation of a product along some dimensions of interest Designed to support the initial evaluation of the application

Mobile Applications - Prototyping

Gunnar Misund

Prototype

1. Designers create prototypes for their own benefit; visually and physically representing ideas externalizes cognition and provides the designer with backtalk (Schön and Bennett 1996) – surprising, unexpected discoveries that uncover problems or generate suggestions for new designs.

2. Prototypes provide a locus of communication for the entire design team – through prototypes, the tacit knowledge of individuals is rendered visible to the team.

3. Prototypes are integral to user-centric development by providing artifacts that can be used for user feedback and usability testing.

Carter et. al., Exiting the cleanroom: On ecological validity ubiquitous computin g (2008)

Mobile Applications - Prototyping

Gunnar Misund

Lightweight prototypesBy lightweight prototyping, we mean the rapid iterative process of designing and exploring representations that look like or work like a possible application. Examples include sketches, paper prototype mock-ups (Rettig 1994; Snyder 2003), probes, and Wizard of Oz simulations of working systems. All of the challenges are problematic at this stage of development. While similar challenges might exist in other domains, ubicomp developers face major development hurdles at this stage. As a result, this often becomes a bottleneck for ubicomp developers

Carter et. al, Exiting the cleanroom: on ecological validity and ubiquitous computing

Mobile Applications - Prototyping

Gunnar Misund

Low fidelitySimple, cheap, easy to make/modifyMockup StoryboardingSketchingCards (each depicting one screen, or ...)Wizard of Oz....not applicable here?

Mobile Applications - Prototyping

Gunnar Misund

Storyboard

Storyboard illustrating h2g2's strategic vision for mobile based delivery of content from the h2g2 website (Hitchikers Guide...).

Mobile Applications - Prototyping

Gunnar Misund

Paper In ScreenMobile Applications - Prototyping

Gunnar Misund

Mixed fidelityMobile Applications - Prototyping

Gunnar Misund

High fidelity

Working!Rich functionality

Mobile Applications - Prototyping

Gunnar Misund

Experience prototyping

SimulationHeart defibrillatorThird age suit

Mobile Applications - Prototyping

Gunnar Misund

Video scenario

Espen!

Mobile Applications - Prototyping

Gunnar Misund

Lab or Field?Kjeldskov et al.:

Is it worth the hassle? Exploring the added value of evaluating the usability of context-aware mobile systems in the field (2004)

Nielsen et al.:It’s Worth the Hassle! The Added Value of Evaluating the Usability of Mobile Systems in the Field (2006)

Rogers et al.:Why It's Worth the Hassle: The Value of In-Situ Studies When Designing Ubicomp (2007)

Mobile Applications - Prototyping

Gunnar Misund