With the right structure, …
In an ideal world, the structure of each document would be fit for each exact audience and purpose. And the content within each document tailored, with all the right things included and excluded.
… the right formatting …
It makes a difference to readability so it’s important to choose whether we present the information as tables or as in-line text, displayed in spreadsheets or as charts.
… and clear navigation.
Each audience and each document will be different. So it is important to think about the best way to include related information. Maybe ‘in-situ’, integrated into the root information. Or accessible with hyperlinks, so readers can move around the document in the same way they would online.