a continuous interaction approach to interactive medical device design
DESCRIPTION
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/1181850TRANSCRIPT
A continuous interaction approach tointeractive medical device design
Gerrit NiezenSwansea University
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
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
CHEVRON KEY INTERFACE
NUMBER ENTRY WITH CHEVRON KEYS
"big up" "small up"
NON-SYMMETRIC DEVICE BEHAVIOUR
"big up" "big down"
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