Enterprise Administration > Implementing Windchill ESI > Implementing Windchill ESI in an ORACLE Applications Environment > XML Schemas
  
XML Schemas
This appendix provides details on the followingWindchill ESI XML schemas:
• Common Business Object (CBO)
• ESILog
• ESIError
• ESIResultService
• ESIJMSCustomProperties
In the following sections, illustrations of the schemas include occurrence indicators (displayed in circles) to specify how many times an element may appear at a given location. Refer to the following table for the indicators and their descriptions when reviewing the XML schemas.
Occurrence Indicator
Description
None
The element must appear once and only once. Neither optional nor repeatable.
?
The element (or group of elements) may appear zero or one time. The element is optional, but is only allowed to appear once. Optional but not repeatable.
+
The element (or group of elements) must appear one or more times. The element is required to appear at least once, but multiple consecutive occurrences may be present. Repeatable but not optional.
*
The element (or group of elements) may appear zero or more times. The element can appear as many times consecutively as needed. Repeatable and optional.