not poking - people.cs.uct.ac.za

Stroking not PokingKent Hawkings | Jason Bissict | Andrew Pettey

OVERVIEW

IntroductionProblem StatementResearch Questions:

Investigation Approach

Evaluation methods

OVERVIEW

Implementation EnvironmentConclusionQuestions

What is aGesture

?

David Saffer:"any physical movement that a digital system can sense and respond to without the aid of a traditional pointing device such as a mouse or stylus. A wave, a head nod, a touch, a toe tap, and even a raised eyebrow can be a gesture."

GesturesSurface

GesturesMotion

DiscreteInteraction

"Poking"

Problem

Statement

Touchscreen devices are:

Ubiquitous

Touchscreen devices are:

UbiquitousLargely Mobile

Touchscreen devices are:

UbiquitousLargely Mobile

Not exploited

Research Questions

?

User Experience:

Gestures: Discrete

Surface

VS.

How?

Photo Editor

How?

DesignInteracti n

How?

Prototyping

Hi-Fi

Low-Fi

aluationE

Quantitative

Error RateSuccess RateTotal Completion Time

QualitativePost Experiment Interviews

User Experience:

Gestures: Motion

Surface

VS.

How?

How?

Music Player

How?Music

Player

Motion Gestures

Surface Gestures

Discrete

How?

DesignInteracti n

How?

Prototyping

Hi-Fi

Low-Fi

aluationE

User TestingPrototypes:

aluationE

QuantitativeFinal Product

Qualitative

aluationEQuantitative

aluationEQuantitative

Completion timeError Rate

Success Rate

aluationEQualitative

aluationEQualitative

Longitudinal Studies

Post-Experiment Interview

Gestural Interface

for Solving theApplication

OVERLOAD

What?

A Study on Icon Arrangement by Smartphone Users

(Bohmer, M and Kruger, A. , 2013)

has created discussion around user interaction

with applications and icon arrangement on smartphone

devices

THESE:

Are causing this:

Solution:

Research Question

Concepts

Human-Computer Interaction

vsAdaptive AdaptableInterfaces

Concept

ConceptCentered User Design

Continuous Evaluation

Iterative Process

Prototyping

Critical Aspects

LockScreen

Intuitive

Responsive

Customisable

aluationE

Quantitative

QuantitativeLab Experiments

Total Completion TimeError Rate

Qualitative

QualitativePost Experiment Interviews

Longitudinal StudyJournalsInterviews

Elementsrequired tocreate an intuitivegestural interface

Recognition

VS.Recall

Implementation

Android

Platform

Conclusion

?Questions

Time ine

Initial Research

Gesture Experiments

Interface Experiments

Final Experiment

25 DaysExperiment Research

User Gesture Experiment Low-Fidelity

PrototypeUser Testing

High-Fidelity Prototype

4 Months 1 Day

User Testing

Experimentation

Final Product

Application Development

Background and Theory

DesignTesting and

Implementation

Outline of report

5 Months 4 Days

Poster

Reflection Report

Final Report

Written Hand-ins

WorkRelated

Gestural InteractionAnalysis of similarities and differences in user defined gestures:

Gestural InteractionAnalysis of similarities and differences in user defined gestures:

Across different CulturesMauney, et al. (2010)

Gestural InteractionAnalysis of similarities and differences in user defined gestures:

Between technical and non-technical usersWobbrock, Morris and Wilson (2009)

Usability Inspection Methods

Nielsen, Jakob

Evaluating an Interface

Quantitative

Cognitive walkthrough

Heuristic evaluation

Formal usability inspections

Qualitative

Pluralistic walkthroughs

Heuristic evaluation

Interviews

KeySuccess

actors

Experiment ResultsHow sound are our results?

Accurate user testing

Analysis of findings

ImplementationMP3 Player x3

ImplementationMP3 Player x3

Image Editor x2

ImplementationMP3 Player x3

Image Editor x2Lock Screen x3

Risks

Usual SuspectsCode Loss

Scope Creep

Hardware issues

Dependencies

Failure to effectively implement gesture recognition

Failure to acquire enough participants for user experiments