When you map a destination node, you indicate the data source used to complete the node and create a mapping rule. Mapping rules provide data to a destination node in various ways, as described below.
Mapping from a source node to a destination node creates a link between them. This is the most common way to define a mapping rule. There are several ways to link source and destination nodes as described in these topics:
Mapping by assignment means that you provide a default value or use functions to determine the value of the destination node. See Assigning a Default Value for a Destination Node and Assigning a Function Without a Source Node Link for more information.
Mapping using a combination of source nodes and functions refers to manipulating the link between source and destination nodes with functions to convert data, calculate or assign data. See the Assigning Function(s) to a Mapping Rule for details