Inclusive design is a design process in which a product, service, or environment is designed to be usable for as many people as possible, particularly groups who are traditionally excluded from being able to use an interface or navigate an environment. Its focus is on fulfilling as many user needs as possible, not just as many users as possible. Historically, inclusive design has been linked to designing for people with physical disabilities, and accessibility is one of the key outcomes of inclusive design. However, rather than focusing on designing for disabilities, inclusive design is a methodology that considers many aspects of human diversity that could affect a person's ability to use a product, service, or environment, such as ability, language, culture, gender, and age. The Inclusive Design Research Center reframes disability as a mismatch between the needs of a user and the design of a product or system, emphasizing that disability can be experienced by any user. With this framing, it becomes clear that inclusive design is not limited to interfaces or technologies, but may also be applied to the design of policies and infrastructure. Three dimensions in inclusive design methodology identified by the Inclusive Design Research Centre include: Further iterations of inclusive design include product inclusion, a practice of bringing an inclusive lens throughout development and design. This term suggests looking at multiple dimensions of identity including race, age, gender and more.

History

In the 1950s, Europe, Japan, and the United States began to move towards "barrier-free design," which sought to remove obstacles in built environments for people with physical disabilities. By the 1970s, the emergence of accessible design began to move past the idea of building solutions specifically for individuals with disabilities towards normalization and integration. In 1973, the United States passed the Rehabilitation Act, which prohibits discrimination on the basis of disability in programs conducted by federal agencies, a crucial step towards recognizing that accessible design was a condition for supporting people's civil rights. In May 1974, the magazine Industrial Design published an article, "The Handicapped Majority," which argued that handicaps were not a niche concern and 'normal' users suffered from poor design of products and environments as well. Clarkson and Coleman describe the emergence of inclusive design in the United Kingdom as a synthesis of existing projects and movement. Coleman also published the first reference to the term in 1994 with The Case for Inclusive Design, a presentation at the 12th Triennial Congress of the International Ergonomics Association. Much of this early work was inspired by an aging population and people living for longer times in older ages as voiced by scholars like Peter Laslett. Public focus on accessibility further increased with the passage of the passage of the Americans with Disabilities Act of 1990, which expanded the responsibility of accessible design to include both public and private entities. In the 1990s, the United States followed the United Kingdom in shifting focus from universal design to inclusive design. Around this time, Selwyn Goldsmith (in the UK) and Ronald 'Ron' Mace (in the US), two architects who had both survived polio and were wheelchair users, advocated for an expanded view of design for everyone. Along with Mace, nine other authors from five organizations in the United States developed the Principles of Universal Design in 1997. In 1998, the United States amended Section 508 of the Rehabilitation Act to include inclusivity requirements for the design of information and technology. In 2016, the Design for All Showcase at the White House featured a panel on inclusive design. The show featured clothing and personal devices either on the market or in development, modeled by disabled people. Rather than treating accessible and inclusive design as a product of compliance to legal requirements, the showcase positioned disability as a source of innovation.

Differentiation from accessible and universal design

Inclusive design is often equated to accessible or universal design, as all three concepts are related to ensuring that products are usable by all people. However, subtle distinctions make each approach noteworthy.

Accessibility

Accessibility is oriented towards the outcome of ensuring that a product supports individual users' needs. Accessible design is often based upon compliance with government- or industry-designated guidelines, such as Americans with Disabilities Act (ADA) Accessibility Standards or Web Content Accessibility Guidelines (WCAG). As a result, it is limited in scope and often focuses on specific accommodations to ensure that people with disabilities have access to products, services, or environments. In contrast, inclusive design considers the needs of a wider range of potential users, including those with capability impairments that may not be legally recognized as disabilities. Inclusive design seeks out cases of exclusion from a product or environment, regardless of the cause, and seeks to reduce that exclusion. For example, a design that aims to reduce safety risks for people suffering from age-related long-sightedness would be best characterized as an inclusive design. Inclusive design also looks beyond resolving issues of access to improving the overall user experience. As a result, accessibility is one piece of inclusive design, but not the whole picture. In general, designs created through an inclusive design process should be accessible, as the needs of people with different abilities are considered during the design process. But accessible designs aren't necessarily inclusive if they don't move beyond providing access to people of different abilities and consider the wider user experience for different types of people—particularly those who may not suffer from recognized, common cognitive, or physical disabilities.

Universal design

Universal design is design for everyone: the term was coined by Ronald Mace in 1980, and its aim is to produce designs that all people can use fully, without the need for adaptations. Universal design originated in work on the design of built environments, though its focus has expanded to encompass digital products and services as well. Universal design principles include usefulness to people with diverse abilities; intuitive use regardless of user's skill level; perceptible communication of necessary information; tolerance for error; low physical effort; and appropriate size and space for all users. Many of these principles are compatible with accessible and inclusive design, but universal design typically provides a single solution for a large user base, without added accommodations. Therefore, while universal design supports the widest range of users, it does not aim to address individual accessibility needs. Inclusive design acknowledges that it is not always possible for one product to meet every user's needs, and thus explores different solutions for different groups of people.

Approaches to inclusive design

In general, inclusive design involves engaging with users and seeking to understand their needs. Frequently, inclusive design approaches include steps such as: developing empathy for the needs and contexts of potential users; forming diverse teams; creating and testing multiple solutions; encouraging dialogue regarding a design rather than debate; and using structured processes that guide conversations toward productive outcomes.

Principles of Universal Design (1997)

Five United States organizations—including the Institute for Human Centered Design (IHCD) and Ronald Mace at North Carolina State University—developed the Principles of Universal Design in 1997. The IHCD has since shifted the language of the principles from 'universal' to 'inclusive.'

UK Commission for Architecture and Built Environment (2006)

The Commission for Architecture and the Built Environment (CABE) is an arm of the UK Design Council, which advises the government on architecture, urban design and public space. In 2006, they created the following set of inclusive design principles:

Inclusive Design Toolkit

The University of Cambridge's Inclusive Design Toolkit advocates incorporating inclusive design elements throughout the design process in iterative cycles of:

Corporate inclusive design approaches

Microsoft emphasizes the role of learning from people who represent different perspectives in their inclusive design approach. They advocate for the following steps: For Adobe, the inclusive design process begins with identification of situations where people are excluded from using a product. They describe the following principles of inclusive design: For Google, the inclusive design process is slightly different and is called product inclusion, and looks at 13 dimensions of identity and the intersections of those dimensions throughout the product development and design process.https://about.google/belonging/in-products/

Participatory design

Participatory design is rooted in the design of Scandinavian workplaces in the 1970s, and is based in the idea that those affected by a design should be consulted during the design process. Designers anticipate how users will actually use a product—and rather than focusing on merely designing a useful product, the whole infrastructure is considered: the goal is to design a good environment for the product at use time. This methodology treats the challenge of design as an ongoing process. Further, rather than viewing the design process in phases, such as analysis, design, construction, and implementation, the participatory design approach looks at projects in terms of a collection of users and their experiences.

Examples of inclusive design

There are numerous examples of inclusive design that apply to interfaces and technology, consumer products, and infrastructure.

Interfaces and technology

Consumer products

Infrastructure