Information architecture.
WHAT IT MEANS
How content is grouped, labelled and arranged.
WHY IT MATTERS MOST
If people cannot find something, nothing else about the design matters.
WHAT TO ORGANISE AROUND
What people are looking for.
Not how your business is structured internally.
THAT DISTINCTION
Sites organised by department consistently fail, because visitors do not know your departments.
WHAT TO ESTABLISH
What people come looking for, in order of frequency What they call those things
HOW TO FIND OUT
Search terms used on your site Support requests Asking people
WHAT TO PUT AT THE TOP LEVEL
The few things most people want.
WHAT TO NEST DEEPER
Everything else.
HOW DEEP
As shallow as the content allows.
Every level is a decision and a chance to go wrong.
WHAT TO TEST
Give someone a goal and see whether they find it.
WHAT TO AVOID
Categories that overlap Categories with one item