Product design question

Design a door for the visually impaired.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Inclusive design thinking, checking you can design for a real accessibility need with concrete, non-visual interaction patterns.

Clarify scope, whether this is a home, public building, or commercial door, since context changes requirements around security and traffic volume.
List pain points for visually impaired users: locating the door and handle without visual cues, uncertainty about what's on the other side, and difficulty operating unfamiliar mechanisms.
Consider both passive and active wayfinding: audio or haptic cues to locate the door, and tactile or braille indicators on the handle or frame.
Propose the design: a door with a distinct tactile floor or frame indicator for location, an audio cue confirming door state, open or closed, and a simple, consistent handle mechanism.
Prioritize consistent, predictable interaction patterns over novel mechanisms, since consistency across contexts reduces cognitive load for visually impaired users.
Define success as usability testing outcomes with visually impaired users specifically, confirming that testing with the actual target population is in scope.

Designs for both wayfinding, locating the door, and operation, using it safely, as two distinct problems rather than treating accessibility as one generic feature.
Proposes concrete, testable mechanisms, tactile floor indicators and audio state confirmation, rather than vague 'make it more accessible' language.
Prioritizes consistency with existing accessible design conventions over inventing a novel mechanism, since familiarity reduces cognitive load.
Insists on usability testing directly with visually impaired users as part of the process, not just internal assumptions about their needs.

Designing only visual improvements like high-contrast color, which doesn't address the core need for a visually impaired user.
Not distinguishing the wayfinding problem from the operation problem.
Skipping direct usability testing with the actual target population.

How would you test this design with visually impaired users before wide deployment?
How would this design need to change for a busy public building versus a private home?