Inclusive design

Inclusive design starts with people a product would otherwise exclude, then treats what they need as a source of design ideas from day one. Disability can be permanent, temporary, or situational: one-handed use matters to an amputee, someone with a broken arm, and a parent holding a baby. Designing across that range usually makes the product sturdier for everyone. The standard proof is the curb cut: cut into the pavement for wheelchair users, then used every day by strollers, suitcases, delivery trolleys, and anyone on a bike.

Microsoft's Xbox Adaptive Controller is the concrete version of the idea. It was developed with disabled gamers and organizations that support them, and its large controls and external input ports let people assemble a setup around their own body. Reach for the same process before choosing interaction patterns, writing requirements, or testing a flow, while changes are still cheap.

Gotcha: inclusive design does not mean one interface must work for every person in exactly the same way. Offer equivalent routes, settings, and compatible assistive technology instead of chasing a mythical average user. It also does not replace accessibility standards: WCAG is a testable floor, while inclusive design is the wider design process.