Components

Which components the system carries: its inventory, picked from the catalogue.

The five answers

Question	Answer	Why
Which component families does it need?	Core, plus content and media	Readers need sections, navigation and little else.
How far does the inventory reach?	Only what today's screens use	Actions are rare, so the components today's pages use cover them.
How does a component earn its place?	A use scenario needs it	A component joins only when reading needs it.
When does a component get another look?	Only when the meaning changes	Pages stay calm when a component changes only with its meaning.
Where do components do the most work?	Articles	Components sit inside and around articles.

When to use what

Situation	Use	Not	Why
No component in the inventory fits	plain text, a link or a heading	a new component for one article	Readers come for the words; extra parts pull the eye away from them.