How the specific configured model are tracked

Hello,

I would like to know how the single configured item is tracked in Oracle.

Whenever user selects a particular combination of optional, creating a new configuration of existing model, which is the paratemer (both displayed in UI and stored in standard tables/views) that indicates the specific item?

For non-configured items, for istance, we track them by Item Number (inventory_itemd_id), but for configured items is there the same inventory_itemd_id for every combination of optional selected? Is there any object that could be helpful for us?

Thank for you support!

Federico.