Domain · 01
AI-Embedded Devices
Voice assistants, AI cameras, smart appliances, and LLM-powered copilots embedded in real products. We test trust calibration, hallucination tolerance, and cognitive offloading.
Embedded AITrustCopilot UX
CATT사용성평가연구센터
LAB ONLINEStart a Study →
EST. 2016 · DAEGU · GLOBAL
N 35.8714°E 128.6014°UTC+09
◢ Usability Evaluation · Human-Centered Research · ISO 9241-210
We test
what the
future touches.
CATT is an independent usability research lab evaluating the next generation of AI-embedded devices, autonomous robotics, and clinical-grade medical instruments — measuring how humans really use them, before the world does.
// Current Study
Autonomous Surgical Assistant v2.4
Cohort 18 · Iteration 03 · n=42
SUS
87.3
Task ✓
94%
◢ Scroll · Section 01 / 09
Gaze AnalyticsEEG · GSRTask AnalysisHeuristic EvalCo-Design
◢Human-AI Interaction
◢Surgical Robotics
◢Medical UX
◢Cognitive Load
◢Eye-Tracking
◢ISO 62366-1
◢Heuristic Evaluation
◢Voice Interfaces
◢Autonomous Systems
◢Wearables
◢EEG · GSR
◢Co-Design
◢Human-AI Interaction
◢Surgical Robotics
◢Medical UX
◢Cognitive Load
◢Eye-Tracking
◢ISO 62366-1
◢Heuristic Evaluation
◢Voice Interfaces
◢Autonomous Systems
◢Wearables
◢EEG · GSR
◢Co-Design
// 02 — About
The Center
CATT / 2016—
CATT / 2016—
We exist to keep
advanced technology honest about people.
CATT — the Center for Advanced Technology and Testing — is a dedicated usability research institute working at the boundary of cognition, engineering, and clinical evidence. We design and run the studies that turn cutting-edge prototypes into products people can actually trust.
From large language model interfaces to bedside infusion pumps and collaborative robots, our researchers translate behavioural measurement into actionable design guidance — regulated, repeatable, and ruthlessly human-centered.
10+ yrs
of formative & summative testing
ISO 62366
medical device usability
ISO 9241
human-centered design
n>3,200
study participants to date
// 03 — Research Domains
Four edges.
One method.
Each domain demands its own evidence — surgical safety thresholds differ from chatbot satisfaction. But the underlying science of human performance is one. We bring that science to every brief.
Domain · 02
Robotics
Collaborative arms, surgical assistants, mobile platforms. Measuring shared autonomy, intent legibility, and physical safety.
CobotsSurgicalMobile
Domain · 03
Medical Devices
Formative and summative testing aligned to IEC 62366-1 and FDA HFE guidance. From infusion pumps to AI diagnostics.
IEC 62366HFE/UEFDA
Domain · 04
Human-Computer Interaction
Core HCI research: attention, cognitive load, embodied interaction, accessibility. The science under everything else we do.
CognitionA11yEmbodiment
// 04 — Methods
Eight instruments
for one signal: truth.
We blend behavioural, physiological, and self-report measurement to triangulate what users do, what their bodies say, and what they think they did — because all three usually disagree.
M.01→
Gaze Analytics
1200Hz gaze, fixation, scanpath, and AOI analytics.
M.02→
Psychophysiology
EEG · GSR · ECG · facial EMG synced to interaction.
M.03→
Task & Error Analysis
Hierarchical task analysis, use-error scoring, root cause.
M.04→
Heuristic Evaluation
Nielsen, Schneiderman, plus domain-tuned heuristics.
M.05→
Cognitive Walkthrough
Mental model probing, NASA-TLX, SART, situation awareness.
M.06→
Summative Validation
IEC 62366-1 aligned summative HFE studies, 15+ users.
M.07→
Co-Design Workshops
Participatory design with clinicians, operators, end-users.
M.08→
Remote / Diary Studies
Longitudinal in-context studies with telemetry instrumentation.
0.
Studies Completed
0.
Active Partners
0.
Peer-Reviewed Publications
0.
Researchers & Clinicians
// 06 — Selected Work
A decade of
measurable outcomes.
// 07 — The Lab
2,400 m² of
controlled
environment.
Our facility houses six instrumented study rooms, a simulated operating theatre, and a remote testing infrastructure that reaches participants on four continents. Calibrated, observed, and recorded down to the millisecond.
F.01High-fidelity gaze capture suite (1200Hz)
F.02Psychophysiology lab (EEG · GSR · ECG · EMG)
F.03Simulated OR with surgical robot mockups
F.04Clinical room (ISO 14644-1 grade)
F.05Soundproof observation gallery (8-seat)
F.06Remote testing infrastructure (global panel)
// 08 — Partners & Clients
Trusted by labs, hospitals,
and the teams shipping the future.
MEDTRONIC◢
INTUITIVE◢
PHILIPS◢
SIEMENS◢
GE HEALTHCARE◢
OPENAI◢
BOSTON DYNAMICS◢
JOHNSON & JOHNSON◢
ROCHE◢
SAMSUNG MEDISON◢
ABB ROBOTICS◢
STRYKER◢
OLYMPUS◢
FANUC◢
FRESENIUS◢
MEDTRONIC◢
INTUITIVE◢
PHILIPS◢
SIEMENS◢
GE HEALTHCARE◢
OPENAI◢
BOSTON DYNAMICS◢
JOHNSON & JOHNSON◢
ROCHE◢
SAMSUNG MEDISON◢
ABB ROBOTICS◢
STRYKER◢
OLYMPUS◢
FANUC◢
FRESENIUS◢
// 09 — Start a Study
Brief us.
We respond in 48 hours.
Whether you have a prototype, a regulatory deadline, or just a tough human-factors question — share the shape of it. A senior researcher will reply with a scoped path forward.