Barrier Library

Start with what went wrong.

You shouldn't need to know a WCAG number before you can investigate an accessibility problem.

Browse barriers

12 reviewed entries so far. More will be added as they are reviewed.

Filter by what the interface demands

Select one or more categories. Results match any selected category. Choose All demands to clear your selections.

Broad categories help you discover related barriers. Detailed interface demands remain on each entry; none are disability categories.

12 of 12 barriers shown.

Something changed, but I wasn't told.

The interface updates, but the change isn't communicated through every relevant interaction mode.

  • Status changes
  • Automation: partial

Interface demands

  • Attention
  • Auditory / programmatic perception

I know it's here, but I can't find it.

Information exists, but structure or navigation makes locating it unnecessarily difficult.

  • Findability
  • Human evaluation

Interface demands

  • Navigation
  • Attention
  • Executive processing

I don't have enough time.

A time limit expires before the person can comfortably perceive, understand or complete the task.

  • Timing
  • Human evaluation

Interface demands

  • Timing
  • Processing speed
  • Attention

A second way to look

What does the interface demand?

Accessibility barriers do not belong neatly to one disability or group of people. Another way to investigate them is to ask what the product requires a person to do.

MemoryAttentionComprehensionNavigationMotor interactionPerceptionTimingRecoveryAdaptabilityMultiple demands

These are interface demands, not diagnoses. A single demand can affect many people for many reasons, and one barrier can involve several demands.