UD Process, Principles, and Applications

Designing any product or environment involves the consideration of many factors, including aesthetics, engineering options, environmental issues, safety concerns, industry standards, and cost. Often, designers focus on the average user. But when UD principles are applied, products and environments meet the needs of potential users with a wide variety of characteristics.

Disability is just one of many characteristics that an individual might possess. For example, one person could be Hispanic, six feet tall, male, thirty years old, an excellent reader, primarily a visual learner, and deaf. All of these characteristics, including his deafness, should be considered when developing a product or environment he, as well as individuals with many other characteristics, might use.

UD can be applied to any product or environment. For example, a typical service counter in a place of business is not accessible to everyone, including those of short stature, those who use wheelchairs, and those who cannot stand for extended periods of time. Applying UD principles might result in the design of a counter that has multiple heights—the standard height designed for individuals within the average range of height and who use the counter while standing up, and a shorter height for those who are shorter than average, use a wheelchair for mobility, or prefer to interact with service staff from a seated position.

Making a product or an environment accessible to people with disabilities often benefits others. For example, automatic door openers benefit individuals using walkers and wheelchairs, but also benefit people carrying groceries and holding babies, as well as toddlers or elderly citizens. Sidewalk curb cuts, designed to make sidewalks and streets accessible to those using wheelchairs, are more often used by kids on skateboards, parents with baby strollers, and delivery staff with carts.

When television displays in airports and restaurants are captioned, programming is accessible not only to people who are deaf but also to others who cannot hear the audio in noisy areas. UD is a goal that puts high values on diversity, equality, and inclusiveness. It is also a process. The following paragraphs summarize the principles, process, and applications of UD.

UD 7 Principles

At the CUD, a group of architects, product designers, engineers, and environmental design researchers established seven principles of UD to provide guidance in the design of products and environments. Following are the CUD principles of UD, each followed with an example of its application:

1. Equitable use. The design is useful and marketable to people with diverse abilities. For example, a website that is designed to be accessible to everyone, including people who are blind and use screen reader technology, employs this principle.
2. Flexibility in Use. The design accommodates a wide range of individual preferences and abilities. An example is a museum that allows visitors to choose to read or listen to the description of the contents of a display case.
3. Simple and intuitive. Use of the design is easy to understand, regardless of the user's experience, knowledge, language skills, or current concentration level. Science lab equipment with clear and intuitive control buttons is an example of an application of this principle.
4. Perceptible information. The design communicates necessary information effectively to the user, regardless of ambient conditions or the user's sensory abilities. An example of this principle is captioned television programming projected in a noisy sports bar.
5. Tolerance for error. The design minimizes hazards and the adverse consequences of accidental or unintended actions. An example of a product applying this principle is a software application that provides guidance when the user makes an inappropriate selection.
6. Low physical effort. The design can be used efficiently, comfortably, and with a minimum of fatigue. Doors that open automatically for people with a wide variety of physical characteristics demonstrate the application of this principle.
7. Size and space for approach and use. Appropriate size and space is provided for approach, reach, manipulation, and use regardless of the user's body size, posture, or mobility. A flexible work area designed for use by employees who are left- or right-handed and have a variety of other physical characteristics and abilities is an example of applying this principle.

UD Process

The process of UD requires a macro view of the application being considered as well as a micro view of subparts of the application. Following is a process that can be used to apply UD:

1. Identify the application. Specify the product or environment to which you wish to apply universal design.
2. Define the universe. Describe the overall population (e.g., users of service), and then describe the diverse characteristics of potential members of the population for which the application is designed (e.g., students, faculty, and staff with diverse characteristics with respect to gender; age; size; ethnicity and race; native language; learning style; and abilities to see, hear, manipulate objects, read, and communicate).
3. Involve consumers. Consider and involve people with diverse characteristics (as identified in Step 2) in all phases of the development, implementation, and evaluation of the application. Also gain perspectives through diversity programs, such as the campus disability services office. Make these processes known with appropriate signage, publications, and websites.
4. Adopt guidelines or standards. Create or select existing universal design guidelines/standards. Integrate them with other best practices within the field of the specific application.
5. Apply guidelines or standards. Apply universal design in concert with best practices within the field, as identified in Step 4, to the overall design of the application, all subcomponents of the application, and all ongoing operations (e.g., procurement processes, staff training) to maximize the benefit of the application to individuals with the wide variety of characteristics identified in Step 2.
6. Plan for accommodations. Develop processes to address accommodation requests (e.g., purchase of assistive technology, arrangement for sign language interpreters) from individuals for whom the design of the application does not automatically provide access.
7. Train and support. Tailor and deliver ongoing training and support to stakeholders (e.g., instructors, computer support staff, procurement officers, volunteers). Share institutional goals with respect to diversity and inclusion and practices for ensuring welcoming, accessible, and inclusive experiences for everyone.
8. Evaluate. Include UD measures in periodic evaluations of the application, evaluate the application with a diverse group of users, and make modifications based on feedback. Provide ways to collect input from users (e.g., through online and printed instruments and communications with staff).

UD Applications

UD can be applied to any product or environment, such as curricula, career services offices, multimedia, tutoring and learning centers, conference exhibits, museums, microwave ovens, recreational areas, homes, computer labs, worksites, and web pages. DO-IT (Disabilities, Opportunities, Internetworking, and Technology) produces publications and video presentations that promote UD in a variety of educational environments through its online Center for Universal Design in Education (CUDE).

In the menu at the right are some of CUDE's resources. Videos can be viewed freely online or purchased from DO-IT. Publications are provided in accessible (HTML) and camera-ready (PDF) formats and may be duplicated for presentations, mailings, and other noncommercial purposes. You may link to the resources in the following list by selecting "Publications and Videos".

About DO-IT

DO-IT (Disabilities, Opportunities, Internetworking, and Technology) serves to increase the successful participation of individuals with disabilities in challenging academic programs such as those in science, engineering, mathematics, and technology. Primary funding for DO-IT is provided by the National Science Foundation, the State of Washington, and the U.S. Department of Education. DO-IT is a collaboration of UW Information Technology and the Colleges of Engineering and Education at the University of Washington.

Grants and gifts fund DO-IT publications, videos, and programs to support the academic and career success of people with disabilities. Contribute today by sending a check to DO-IT, Box 354842, University of Washington, Seattle, WA 98195-4842. Your gift is tax deductible as specified in IRS regulations. Pursuant to RCW 19.09, the University of Washington is registered as a charitable organization with the Secretary of State, state of Washington. For more information call the Office of the Secretary of State, 1-800-322-4483.

To order free publications or newsletters use the DO-IT Publications Order Form; to order videos and training materials use the Videos, Books and Comprehensive Training Materials Order Form.

For further information, to be placed on the DO-IT mailing list, request materials in an alternate format, or to make comments or suggestions about DO-IT publications or web pages contact:

DO-IT
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ude.wunull@tiod
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Founder and Director: Sheryl Burgstahler, Ph.D.

DO-IT Funding and Partners

Acknowledgment

This publication is based upon work supported by the National Science Foundation and the U.S. Department of Education. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the federal government the University of California or the Master Gardener Association of San Diego County.

Copyright © 2015, 2012, 2009, 2008, 2006, 2005, 2004, University of Washington. Permission is granted to copy these materials for educational, noncommercial purposes.

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