What-If and Scope

Honest MRP Scope

This one-level MRP explosion is deterministic arithmetic, not a full planning system.

highlighted = computed this step

Deterministic Snapshot

This snapshot uses fixed demand, fixed component use, and fixed on hand.

base net=55what-if net=75\text{base net} = 55\quad\text{what-if net} = 75
BOM explosionThe chart compares base requirements with the parent-demand what-if.MRP BOM explosionparent demand 40; use 2; gross 80; net 55parentdemand 40use 2 eachcomponenton hand 25requirementsgross80on hand25net55increase20basebase gross 80net 55what-ifwhat-if gross 100net 75what-if gross 100; net 75; increase 20deterministic one-level MRP arithmetic only

Honesty Note

This is deterministic one-level MRP arithmetic only. It does not model lot sizing, lead time, capacity, scrap, alternate parts, safety stock, or demand uncertainty.

BOM explosion is not lot sizing or lead-time planning\text{BOM explosion is not lot sizing or lead-time planning}
BOM explosionThe chart compares base requirements with the parent-demand what-if.MRP BOM explosionparent demand 40; use 2; gross 80; net 55parentdemand 40use 2 eachcomponenton hand 25requirementsgross80on hand25net55increase20basebase gross 80net 55what-ifwhat-if gross 100net 75what-if gross 100; net 75; increase 20deterministic one-level MRP arithmetic only