References to XML Schema Specification
The same as in editing XML documents, the message of an error obtained by validation of an XML Schema document includes a reference to the W3C specification for XML Schema. An error message contains an Info field that will open the browser on the "XML Schema Part 1:Structures" specification at exactly the point where the error is described, thus allowing you to understand the reason for that error.
Validation of an XML Schema containing a type definition with a
maxOccurs attribute having a value larger than 256 limits the value to 256
and issues a warning about this restriction in the Message panel at the bottom of the Oxygen XML Developer window. Otherwise, for large values of the
maxOccurs attributes, the validator fails with an OutOfMemory
error that might make Oxygen XML Developer unusable without restarting the entire