integrating interaction design evaluation into product design

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Integrating Interaction Design Evaluation into Product Design Process

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Formative evaluation plays an important role in the domain of interaction design (IXD). It occurs throughout the design and development processes, with the results of evaluation feeding back to revise the design. How important is formative evaluation in a product design process? Will this method obstruct creativity, or it can inspire and promote better design? In the fall of 2010, students from a senior-level product design course and a graduate-level interaction design course were grouped together to work on a GE Healthcare sponsored design project: home-based health monitors for individuals with Cerebral Palsy, Parkinson’s Disease, Multiple Sclerosis, and Arthritis. Product design students led the overall process of design: investigating the diseases, brainstorming the concepts and finalizing the design with stages of prototypes and computer models. IXD students acted in two roles: designing the interactive design components of the concepts and running formative evaluations iteratively to improve the outcome during the process. They adopted several evaluation methods, including usability testing, interface criticism, cognitive walkthrough, and heuristic evaluation at different stages to evaluate and improve the design outcomes. Instead of being an outside critic, they actively participated in the creation process. Product design students gained from the experience of working in a multi-role team, listening to the evaluation results, and integrating suggestions into their work. This paper reports the structure and outcomes of these design collaborations, highlights the gains and losses in the process, and most importantly, illustrates a potential path to conduct such design education in the future.

TRANSCRIPT

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Integrating Interaction Design Evaluationinto Product Design Process

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STEVE VISSERProfessor of Industrial Design

CHERYL ZHENYU QIANAssistant Professor of Interaction DesignDepartment of Art and Design

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An urgent need to considerdigital interaction

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User Interaction Experience00

interface + navigation

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Interface

00

A boundary across which two independent systems meet and act on or communicate with each other.

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Interface00

What is the industrial designer’s responsibility?

Physical interface itself

or

Integration of digital & physical interface

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User Interface00

Engi

neer

ing-

cent

ered

user

-cen

tere

d

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A Humanized InterfaceLessons learned so far:• Don’t replace humans • Don’t replicate humans• Reflect human behavior.

Three qualities of the human interface (Christopher Fahey, IXDA 2010)– Sentience– Intimacy– Personality

00

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Navigation00

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Lost in the navigation01

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01

Lost in the navigation

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To integrate physical and digital interaction in education, there are gaps

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Gap between design and cognitive science

01

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Gap between design and information technology

01

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Gap between design and evaluation methods

01

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GE Healthcare Home Monitor

for patients of Multiple Sclerosis, Parkinson's, Arthritis, Cerebral Palsy

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What are the home monitors on the market?

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Existing Product Usability Tests00

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Identified Problems00

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Diseases Research00

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Empathetic Research00

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Identified Many ProblemsFor example, for CP• Impossible to make universal product creation since no two CP patients are exactly the same.• If wake up during the midnight, it is very hard to adjust position and fall back to sleep• Lack of resources to organize series of training• Lack of adequate information resources for patients who are over age of 18.• Expensive products and treatments• Eager to regain some form of freedom: from human aides, of movement, of social interaction.

00

The design goal changed from monitoring to improving the chronic conditions and life quality

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Concept Progression00

Each team illustrate 12 design concepts

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Review Concepts00

96 design concepts generated from 8 teams

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Physical Prototypes00

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Digital Prototypes00

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Design Evaluation00

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Multiple Sclerosis Problem

33© 2011 Cheryl Zhenyu Qian, Purdue University

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Design Outcome

© 2011 Cheryl Zhenyu Qian, Purdue University

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© 2011 Cheryl Zhenyu Qian, Purdue University

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© 2011 Cheryl Zhenyu Qian, Purdue University

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© 2011 Cheryl Zhenyu Qian, Purdue University

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© 2011 Cheryl Zhenyu Qian, Purdue University

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© 2011 Cheryl Zhenyu Qian, Purdue University

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00Arthritis Problem

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The solution.

Fits comfortably in hand

Design Outcome of Enable

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Track how long you have been inactiveDesign Outcome for Arthritis

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Design Outcome00

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School of Visual and Performing Arts– Industrial and Interaction Design– Graphic Design (VCD)– Electronic and time-based Arts

College of Engineering– Mechanic Engineering– Computing Engineering– Electronic Engineering

Push the envelope of design

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www.interactiondesign.us

Deadline: Feb. 1st, 2012