a continuous interaction approach to interactive medical device design

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A continuous interaction approach to interactive medical device design Gerrit Niezen Swansea University

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Presented at the MediCHI workshop at the ACM SIGCHI Conference on Human Factors in Computing Systems (CHI 2013) See the poster here: http://figshare.com/articles/A_continuous_interaction_approach_to_interactive_medical_device_design/1181850

TRANSCRIPT

Page 1: A continuous interaction approach to interactive medical device design

A continuous interaction approach tointeractive medical device design

Gerrit NiezenSwansea University

Page 2: A continuous interaction approach to interactive medical device design

CONTINUOUS INTERACTION

I User exchanges input and output of dynamic informationwith a device over time

I Tight feedback loop: human-in-the-loopI Visual/haptic/audio feedback influences our actions and

changes our perceptionsI We control what we perceive

User DeviceActPerceive

Page 3: A continuous interaction approach to interactive medical device design

DYNAMIC MODELS

I Underutilised in current HCI researchI Early HMI research during 1950s-1970s focused on

continuous interactionI Human pilot models developed in 1950s still used in

aerospace engineering

Page 4: A continuous interaction approach to interactive medical device design

CHEVRON KEY INTERFACE

Page 5: A continuous interaction approach to interactive medical device design

NUMBER ENTRY WITH CHEVRON KEYS

"big up" "small up"

Page 6: A continuous interaction approach to interactive medical device design

NON-SYMMETRIC DEVICE BEHAVIOUR

"big up" "big down"

Page 7: A continuous interaction approach to interactive medical device design

DISCUSSION

I Mimic real-world physics in the user interface, utilisinghuman perception of velocity etc.

I Build a human operator model to test user interfacealternatives in simulation

I Evaluating other types of physical input devices fornumber entry, e.g.:

I Dual concentric rotary encodersI Self-centring jog wheels