What-If and Scope

Honest Offset Scope

MRP lead-time offset is deterministic arithmetic, not a full planning system.

highlighted = computed this step

Deterministic Snapshot

This snapshot uses fixed net requirement, fixed due week, and fixed lead time.

base release=4what-if release=3\text{base release} = 4\quad\text{what-if release} = 3
Lead-time offsetThe timeline compares the base release with the longer-lead-time what-if.MRP lead-time offsetnet 55; due week 6; lead time 2; release week 4caseleadreleasereceiptqtychangebase24655baselinewhat-if336551 earlierw3w4w5w6baserelease w4receipt w6qty 55what-ifrelease w3receipt w6qty 55what-if release week 3; 1 week earlierdeterministic MRP lead-time offset arithmetic only

Honesty Note

This is deterministic MRP lead-time offset arithmetic only. It does not model capacity, expediting, uncertain lead time, supplier reliability, lot sizing, safety stock, or rescheduling.

lead-time offset is not capacity or uncertainty modeling\text{lead-time offset is not capacity or uncertainty modeling}
Lead-time offsetThe timeline compares the base release with the longer-lead-time what-if.MRP lead-time offsetnet 55; due week 6; lead time 2; release week 4caseleadreleasereceiptqtychangebase24655baselinewhat-if336551 earlierw3w4w5w6baserelease w4receipt w6qty 55what-ifrelease w3receipt w6qty 55what-if release week 3; 1 week earlierdeterministic MRP lead-time offset arithmetic only