Component
also called UI component
A reusable interface element with defined behaviour and styling.
A reusable piece you place, not rebuild.
What It Is
You will find Component in the Website layer, alongside the rest of Layout. In practice it means this: a reusable interface element with defined behaviour and styling.
It is a label with a settled working definition, so the value is in using it the same way every time. Once it is defined that clearly, arguments about it usually stop.
How It's Used
You will usually meet Component in site builds, page structure and the technical decisions underneath them. It normally appears alongside Design System, Template and User Interface. The practical test is whether everyone in the room means the same thing by it.
Why It Matters
Component is cheap to get right early and awkward to fix late. When it is unclear, the site still launches — it just quietly underperforms. Clarity here removes a surprising amount of downstream argument.
Picture a word everyone in the room has agreed to use the same way. A reusable piece you place, not rebuild.
Termshift™
How the meaning shifts depending on who is using it, and where.
Professionally, Component carries the narrow meaning: a reusable interface element with defined behaviour and styling.
Explained to someone with no marketing background, Component is a reusable piece you place, not rebuild.
The Bottom Line
If you only keep one thing about Component: a reusable piece you place, not rebuild. Everything after that is detail.