If the input Schema was flawed, Schema Quality Checker will report this
(either on stdout or in the reportAsXML output file.
The error message includes an Error Severity and an Error type.
Error Severity Code
Meaning
0
WARNING: a notification of some minor problem which does not
affect the validity of the schema
1
ERROR: a problem was found related to the syntax or semantics
of the XML Schema specification
2
FATAL_ERROR: no XML Schema found in the input file, or the schema
is not wellformed
Error Type Code
Meaning
0
WELLFORMEDNESS: an error occured because the XML representation
of a Schema is not wellformed
1
XML_SCHEMA_REPRESENTATION: an error occured because the XML
representation is not valid against the DTD for Schema and/or against other
constraints on the way XML Schema should be represented as an XML document
2
CONSTRAINT_ON_SCHEMA : an error occured because at
least one constraint on schema is not valid, acording to the
definition provided in the XML Schema specification Part I
Chapter 3.