Visible trust for invisible sensing systems.
Designing sensors and AI systems that are legible, controllable, and verifiable—not just for primary users, but for adjacent users they impact.
Framework — Legible Sensing
Product & Innovation Research
User Experience Patterns & Guidelines
Standard — SenseMark
State & Local Governments
Internal Design Organizations & Teams
Start-Ups & Small Businesses
Researchers & Educators
A complete system for making sensing technologies legible, usable, and trustworthy:
Technical Trust
Legible sensing is built on open standards, a Patented Architecture Implementation, and up-to-date guidance from Sensmark, resulting in a scalable framework that can be applied to any sensing platform.
User Interface
Blending privacy mode controls, verifiable status sharing, and flexible controls, Legible Sensing provides a framework for honest, interpretable indicators that users can actually understand.
Standards and Certification
Build trust into the hardware with firmware-enforced indicators, cryptographic truth, and real-time fault detection. Demonstrate commitment by allowing real-time tests, audit and policy controls, alongside independent certification.
Legibility is designed across the user journey.
Encounter
Become aware that a sensing system is present
Locate
Identify where it is and what it is
Expose
See what it can and cannot do
Verify
Confirm its current state and behavior
Bound
Understand and apply limits
Review
Inspect past activity and changes
Request
Ask for access, changes, or clarification
Contest
Challenge or escalate when something is wrong
Arca, a camera and a case study that embodies Legible Sensing theory put into practice
True On / True Off
Sensor Dimmers
Absent Capabilities
Indicator Correspondence
Verification Share Sheets
SenseMark establishes a shared standard for trustworthy sensing.
Clear definitions of sensing states and capabilities
Requirements for verifiable indicators and controls
Certification and testing protocols
A recognizable trust mark for compliant devices
This work is grounded in research, design, and real-world translation:
Publications
Beyond Cameras and Microphones: Mitigating Privacy Tensions in 'Simple' Smart Home Sensors.
2026
Arca: Documenting Novel Design Patterns for Improving Interpersonal Privacy with Smart Cameras
2025
Pending Patents
Beyond Cameras and Microphones: Mitigating Privacy Tensions in 'Simple' Smart Home Sensors.
2026
Arca: Documenting Novel Design Patterns for Improving Interpersonal Privacy with Smart Cameras
2025
Cite Legible Sensing
Contribute to our mission to accelerate the adoption of legible sensing technology. Reference legible sensing in your own work.
Legible Sensing. People + AI Guidebook.
legiblesensing.com/guidebook
Published May 8, 2019.
Third edition updated April 2025
List of Contributors