Define System Landscape Strategy 
Definition
The purpose of this activity is to establish an implementation strategy for the system landscape.
Use
Tasks include:
1. Define required systems
2. Determine client deployment strategy
3. Define release strategy
4. Define transport system strategy
Modeling your system landscape graphically using the Structure Modeler helps you to ensure that you have not forgotten any fundamental system requirements; that you have documented all the changes made in Customizing and development; and that you have these changes to the appropriate systems.