Trace Center
Information / Transaction Machines Accessibility Guidelines


(Version 1.1, August 1998)


Gregg C. Vanderheiden, Ph.D.

Chris M. Law, MS.

Trace Research and Development Center, University of Wisconsin-Madison


This is a publication of the Trace Research and Development Center which is funded by the National Institute on Disability and Rehabilitation Research of the Department of Education under grant number H133E30012. The opinions contained in this publication are those of the grantee and do not necessarily reflect those of the Department of Education.

© Copyright 1998, Trace Center, University of Wisconsin-Madison, USA.

General Preamble

Introduction to Guidelines

1 Usability of the product




2 Personal Compatibility

3 Guidelines for Compatibility With Peripheral Devices

4 Information, documentation, and training

External WWW links used in this document

Appended Document : Compliance with the ADA for ITMs (Information / Transaction Machines: Kiosks, ATMs etc.).

General Preamble


This guideline provides requirements for accessibility, usability, and compatibility of Information / Transaction Machines (ITMs). ITMs are defined as a class of electronic products, usually public in nature, which provide informational or transactional capabilities, including, but not limited to fare machines, vending machines, automated teller machines, electronic building directories, point-of-sale terminals, and information kiosks.

Major sources

This document has been prepared using input from a number of sources, including two documents from the Access Board (Telecommunications Requirements and the ADAAG). While the themes of the ITM guidelines and the two Access Board documents are similar, the wording has in some cases been transcribed verbatim, and in other cases it has been substantially modified in order to meet the needs specific to ITMs. Therefore, no cross-compatibility between these documents is assumed or implied, except where specifically stated.



Status of this (ITM Guideline) Document

This ITM guideline (version 1.1) has been developed by the Trace Center for the US Access board as a part of grant number H133E30012 of the National Institute on Disability and Rehabilitation Research of the Department of Education. It does not carry the force of any law, although it does bear relation to the ADAAG, and TAAG.

The Trace Center is actively seeking comment from the public, industry, and any other affected organizations. In order to comment to Trace at this stage, please refer to the "mechanism for ongoing dialog" section of the TRACE ITM page.

For current information / news / updates regarding the status of this and related documents, please check the Updates and News pages.

For the status on the applicability of this document, please contact the Access Board.

Introduction to Guidelines

This guideline consists of 4 main parts:

    1. Usability of the product
    2. Personal Compatibility
    3. Compatibility With Peripheral Devices
    4. Information, documentation, and training

ITMs should be accessible to and usable by individuals with disabilities and should comply with these 4 parts as appropriate to achieve accessibility and usability. Efforts to make products accessible should not be limited to adherence to these guidelines.

Manufacturers should evaluate the accessibility, usability, and compatibility of ITMs and should incorporate such evaluation throughout product design, development, and fabrication, as early and consistently as possible. Manufacturers should identify barriers to accessibility and usability as part of such a product design and development process.

In developing such a process, manufacturers should consider the following factors:

In revising products, no change should be undertaken which decreases or has the effect of decreasing the net accessibility, usability, or compatibility of ITMs (with the exception of discontinuation of a product).


1.Usability of the product

The following guidelines should be followed and implemented on the product, as is readily achievable

Where it is not possible to meet all of the guidelines below with a single mode of operation, alternate modes should be provided which are as close as possible to the standard mode of operation.


Usable without ability to hear product

Usable with reduced ability to hear product

Usable without ability to see product


Usable with reduced ability to see product and reduced or no ability to hear product

Usable with reduced or no ability to perceive / discern between colors on product

Usable without requiring attention to 2 (or more) locations simultaneously (even in access modes)


Usable without simultaneous actions

Usable with reduced ability to manipulate controls on product

Usable with reduced ability to reach product

Usable with reduced strength

Usable from a wheelchair or similar personal vehicle

Usable with reduced ability to respond quickly to product requests

Usable without ability to speak


Usable without ability to read information displayed on product

Usable with limited processing skills

Usable with reduced ability to remember product processes

Usable with limited language skills

2.Personal Compatibility

The following should be a part of all modes of operation of the device, as applicable:

Absence of seizure-inducing displays on product

Absence of hearing-aid interference from product

Absence of protruding objects on product

Absence of single-aspect means of identification on product, if biological means are used

Usable with prosthetic limbs or other body parts

3.Guidelines for Compatibility With Peripheral Devices

ITMs should be compatible with peripheral devices commonly used by individuals with disabilities to achieve accessibility, and should comply with the following provisions, as applicable:

Hearing aid coupling

Connection point for external audio processing devices.

External electronic access to all information and control mechanisms.

TTY (Text Telephone) connectability (telecommunications devices only)

TTY (Text Telephone) signal compatibility (telecommunications devices only)

Information pass through.


4.Information, documentation, and training

WWW links used in this document

Appended Document