Materialflow
Customerservice
Stage One: Baseline
Purchasing
Material Control
Production
Sales
Distribution
Materialflow
Customerservice
Stage Two: Functional Integration
Materials Management
Manufacturing Management
Distribution
Materialflow
Customerservice
Stage Three: Internal Integration
Materials Management
Manufacturing Management
Distribution
Materialflow
Customerservice
Stage Four: External Integration
Suppliers
Internal Supply Chain
Customers
Figure 3.3
The progression to supply chain integration.
Source
: Stevens, 1989.