# Why Is final_v7_SIGNED.pdf Still a Normal Business Process?

Because filenames remain the lowest-common-denominator way to communicate document state. They are familiar, but they do not provide structured revision lineage or independently verifiable finality.

## UD model

UDR carries revisions. UDS preserves an exact final state. An amendment creates a new UDR.

## Boundary

UD coexists with current enterprise systems and does not by itself establish compliance or legal sufficiency.

- Demo: https://universaldocument.org/corporate/demo
- Pilot: https://universaldocument.org/corporate/pilot