From the finished garment down to the fibre.
Everybody knows their tier 1. It is from there on that it turns into memory. Trama builds the chain from the documents you already have and the declarations your suppliers make, derives the tiers from the declared relationships, and tells you where what you actually know ends — so you also know what to ask for.

You cannot manage what you cannot see
One supplier, one record. Not a name repeated across six different files, each updated at a different moment. In Trama every company exists once, and from there you see the products it touches and the documents it has sent.
The tier is a result, not a label
Tier 2 is the distance from the finished garment, computed from the declared links. Change a link and the tier changes with it.
The end of the chain is drawn, not hidden
The node nobody has named yet is on the map. That is where the next request goes.