Creating a Data Object Node 
A data object node serves as a container of business data. You can create the following types of nodes for a data object:
Root node
This is the first node in the node hierarchy. A data object can have only one root node.
Child node
When you create a new node under an existing node, it is called the child node.
NoteWhen modeling a standard data object, you ought to reflect the structure of the corresponding business object in the back end to prevent loss of data.
End of the note.
Procedure
Creating a Root Node
Log on to SAP NetWeaver AS and start transaction SDOE_WB.
In the Data Orchestration Engine Workbench, click the data object for which you want to create a root node with the secondary mouse button and choose Add Node.
On the Node Overview tab page, in the Node Detailsarea, enter the following details:
Field name
Description
User action and values
Comment
Node Name
Indicates the name of the node
Enter a name for the node.
The name must not contain any spaces or special characters.
Ensure the name you specify reflects the data set the node represents and conforms to the naming conventions of your software development enterprise.
Description
Indicates a brief description of the node.
Enter a description for the node.
Parent Node Name
Indicates the name of the parent node
A read-only field.
This field is blank for a root node.
Hierarchy
Indicates the level of the node in the node hierarchy
A read-only field.
This field can contain the following values:
1 - indicates root node
2 - indicates the child node of the root node
3 - indicates the child node of a child node (level 2)
NoteYou can have only one root node for a data object, however there is no limit on the number of child nodes.
End of the note. NoteAll fields in the Generated Objectsarea are read-only. These fields fill only when you activate the data object.
End of the note.Choose Save.
You have created the root node. You can now continue by creating a child node based on your requirement or by defining the node attributes.
Creating a Child Node
Log on to the NetWeaver AS and start transaction SDOE_WB.
In the Data Orchestration Engine Workbench, click the required node in the node hierarchy with the secondary mouse button and choose Add a Child Node.
In the Node Overview tab page, under Node Details enter a node name and a description for the node. The Parent Node and Hierarchy fields are read-only.
Choose Save.