What-If and Scope

Longer Lead-Time What-If

A longer deterministic lead time moves the planned release earlier.

highlighted = computed this step

Longer Lead Time

The what-if lead time is 3 weeks.

what-if lead time=3\text{what-if lead time} = 3
Longer lead-time what-ifThe table recomputes the release week when lead time grows.longer lead-time what-ifvaluelead time3release week3receipt week6order qty55earlier1

What-If Release

The what-if release moves to week 3.

6−3=36 - 3 = 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

One Week Earlier

The release is 1 week earlier.

4−3=14 - 3 = 1
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