Match the real world

A product should speak its users’ language. In the example, the booking card uses system terms: "PAX 2", "ARR 12 JUN" and an "Execute" button.

The everyday version says "2 guests", "Check-in: 12 June" and "Book stay". Anyone can understand it without learning internal codes.

Use words and concepts your audience already knows. Specialist terms are fine when your users are specialists, such as doctors or lawyers, but test them first.