Kiosk and Self-Service Systems

Visually impaired evaluator testing a kiosk, accompanied by his service animal.

Multi-Modal User Interface

Universal design considerations:

  • Cross disability solutions that support multiple sensory modalities
  • Tactile keypads as an alternate to touch screen input
  • Speech output for orientation, instructions & prompts
  • Screen based interactions with or without touch input
  • Speech recognition
  • Hardware designs for improved access
  • Usability enhancements that benefit all users


We support clients in the following industries:

  • Retail
  • Restaurant
  • Lodging
  • Transportaion
  • Health Care
  • Education
  • Financial
  • Federal and State Government Agencies

Accessibility + Usability

Proven multi-step process:

  • Evaluate current product & research user needs including people with disabilities
  • Design new user interface or add accessible “layer” to existing workflow
  • Support client teams throughout the development process
  • Conduct heuristic evaluations and field test with users with disabilities

Standards & Guidelines

TFA offers guidance to achieve conformance with:

  • ADA
  • Air Carrier Access Act
  • WCAG 2.0
  • Revised Section 508 Accessibility Standards
  • 21st Century Communications and Video Accessibility Act
  • International Standards

How We Ensure Exceptional Self-Service Experiences for All Users:

Illustration of accessible interface elements, braille, headphones, and checklist

Multi-step Process

TFA’s multi-step process begins with a gap analysis, assessing the existing system against accessibility standards and best practices. TFA then proceeds to define product and interface enhancements for an accessible self-service system. We work with our clients’ development teams to implement the design and conduct expert reviews and user testing.

Visually impaired evaluator testing a kiosk.

In-depth Testing

Thorough testing begins with the heuristic evaluations conducted by TFA’s designers and non-visual evaluators. Field testing is task-based in the environment in which the system is intended to be used. End user field testing allows for “real world” conditions, giving TFA more accurate responses than testing in a lab.

Storm Interface

When an accessible interface requires both tactile controls and an audio jack, TFA is proud to collaborate with Storm Interface, a leading manufacturer of audible system interfaces and content navigation devices. TFA is familiar with Storm’s hardware as it is often an integral part of an accessible interface solution.

Read more about TFA's collaboration with Storm Interface