In System Coupling, all data transfers are accomplished via mapping, which is the process of using the data source to calculate data on the target. Source and target may be mesh or point cloud. If it's a mesh, the data can be located on mesh nodes or on mesh elements.
System Coupling performs two types of mapping, profile-preserving and conservative.
The mapping process consists of two distinct phases:
Intersecting source and target to calculate mapping weights
Interpolating data from source to target
For more detailed information on mapping, see:
For best practices, see Improving Mapping Quality.