Enterprise Administration > Implementing Windchill ESI > Implementing Windchill ESI in an ORACLE Applications Environment > XML Schemas > Common Business Object (CBO) > Common Business Object Schema: Top Level
  
Common Business Object Schema: Top Level
The following describes the elements contained in the CBO schema:
Element
Description
ControlData
Always provided. Contains the overall transaction data.
Part
Optional. The repeatable structure for part data.
Document
Optional. The repeatable structure for document data.
DocumentReference
Optional. Document Link structures. DocumentLinks are at the top-level of the CBO because the CBO is intended to be neutral and not specific to a particular distribution target, and there is no consistency in which object, such as part or document, owns the link from one distribution target to another.
BOM
Optional. The repeatable structure for BOM data.
ECN
Optional. The repeatable structure for ECN data.
Routing
The repeatable structure for process plan references data.
CBOUserArea
Optional. Stores all user-defined data used for customization. CBOUserArea is a complex element. A customizer can add any number of child elements inside the CBOUserArea parent element.