Single source is when shared text lives in one place instead of being copied from article to article. In Gramax that's what fragments are for: a block is created once and reused across the catalog's articles, and after an edit the update appears everywhere at once
Fewer duplicates, more control
The value of fragments isn't only reusing text. They help the team avoid drifting in wording, update important knowledge faster, and see the consequences of a change in advance when the same block is needed in different articles
Fewer inconsistencies
Shared text lives in a single source. The team doesn't argue over which copy is current and doesn't maintain identical blocks by hand
Faster updates
It's enough to fix a fragment once for the new definition, condition, or warning to appear in every linked article