Procurement & Supply Chain / Inventory Management
Days of Supply DOS (aliases: DSI, DIO, Days Inventory Outstanding, days on hand, weeks/days of supply WOS)
How many days (or weeks) your current stock will last, or how long it has been sitting.
The fork, why two teams get different numbers
Forward vs backward, and which demand rate.
In the Metric Library
- The full fork, both definitions worked all the way through
- The trap that makes the number lie, on a real export
- Every formula variant, spelled out
- The reconciliation anchor, what to tie it to and when to refuse
Reference: APICS/SCOR · GAAP/ASC 330