Universal Design and Inclusive Design are closely related frameworks within the discourse of accessibility and equitable design, yet they differ in scope, methodology, and emphasis. Universal Design is grounded in the principle of “design for all,” aiming to create singular solutions that can be accessed and used by the widest possible range of individuals without the need for subsequent adaptation. It emphasizes standardization and anticipatory design strategies, exemplified by interventions such as an integrated building entrance that accommodates wheelchair users, parents with strollers, and other groups simultaneously. By contrast, Inclusive Design acknowledges that a single, universal solution cannot adequately address the full spectrum of human diversity. It therefore adopts a participatory approach, actively engaging marginalized or excluded groups in the design process to co-develop solutions that reflect varied lived experiences. Rather than pursuing uniformity, Inclusive Design emphasizes flexibility and plurality, often enabling multiple pathways for interaction—such as offering multimodal access through text, audio, sign language, or high-contrast visual interfaces. In essence, Universal Design aspires toward broad usability through standardized design strategies, whereas Inclusive Design foregrounds diversity and co-creation as critical components of equitable practice.