# ERP Planning - The Old Way

Available - to-

Promise

MPS

Corporate

Forecast

MRP

CRP

Detailed

Scheduling

Plant

Distribution Centers

DRP

Demand

- Batch Processing– weekends or overnight at best
  - Manage between - Manage by exception. “Nervousness”

- Single Resource Models. MRP, CRP, etc.

- Linear Process

- No Simulation Capabilities

- Push vs. Pull

- Requires multiple iterations between multiple planners
  - Quality of plan hinges on planners guessing well

- MRP/ERP Planning Process is 25 years old

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