The following table lists and describes the differences in behaviors of schema validation between versions.

Table A-4 Differences in behaviors of schema validation between versions

No.	Condition	Cosminexus XML Processor operations
		In version 06-00	In version 07-00 and later versions
1	If xsd:key element exists in a schema document and the text corresponding to the key does not exist in the instance document	An error might not occur.	An error occurs.
2	If you specify a combination of an xsd:key element and an xsd:keyref element for a schema document, and the order and type of the field elements of both xsd:key element and the xsd:keyref element do not match	An error might not occur.	An error occurs.
3	If the xpath attribute for the xsd:field element is an XPath expression that includes the child axis	An error does not occur.	An error indicating that the child axis cannot be specified occurs.
4	If an xpath attribute for an xsd:selector element is an XPath expression that includes an incorrect | operator such as | ns1:element	An error does not occur or an error associated with the validation for an XML document occurs.	An error associated with a schema document occurs.
5	If you specify an empty string for the schemaLocation attribute of the xsd:redefine or xsd:import element	An error does not occur.	An error occurs.
6	If http://www.w3.org/2001/XMLSchema-instance is specified in the targetNamespace attribute of an xsd:schema element	-- (Not applicable)	In 08-00, the error KECX06509-E will be reported. In 08-50 or later versions, error will not be reported. However, if an extended attribute exists, the error KECX06198-E will be reported.
7	When all the following conditions are satisfied: The anyURI type or its derived types are used in the XML schema document Data corresponding to the definition in 1. includes characters violating the provisions in RFC2396 and RFC2732	The KECX06036-E error is reported.	Processed as a value suitable for the data type declaration.
8	When all the following conditions are satisfied: The time or dateTime types are used in the XML schema document 60 is specified as the seconds value in data corresponding to the definition in 1.	Processed as a value suitable for the data type declaration.	The value is considered to be outside the scope of the data type declaration, and the KECX06036-E error is reported.
9	When all the following conditions are satisfied: The time or dateTime types are used in the XML schema document A value in the range from -14:01 to -14:59 or from +14:01 to +14:59 is specified as the time zone offset in data corresponding to the definition in 1.	Processed as a value suitable for the data type declaration.	The value is considered to be outside the scope of the data type declaration, and the KECX06036-E error is reported.
10	When minLength or maxLength is specified in the derivation by the restriction based on a simple type in which the length facet is specified	An error occurs.	An error does not occur.
11	When all of the following conditions are satisfied: An error handler is set during validation parsing During validation parsing, the error or fatalError method of the error handler described in step 1 above is invoked An exception is not thrown in the method described in step 2 above	The validation errors reported in version 06-00 and version 07-00 or later versions might be different.
12	When both the following conditions are satisfied: The type of element specified in the selector of the xsd:unique element is xsd:anyType The type of element described in step 1 above is changed to a simple type using the xsi:type global attribute in the instance document	An error occurs.	An error does not occur.
13	When a blank exists in the instance data of the xsd:anyURI type	An error occurs.	An error does not occur.
14	When the final attribute of the xsd:simpleType element is only a null character string or a blank	An error occurs.	An error does not occur.
15	When the public attribute of the xsd:notation element does not exist	The KECX06230-E error is reported.	The KECX06256-E error is reported.
16	When [- and -] are specified in the regular expression of the value attribute of the xsd:pattern element	An error occurs.	An error does not occur.
17	When all of the following conditions are satisfied: Uniqueness is specified for the elements with xsd:unique The type of element described in step 1 above is not a simple type The type of element described in step 1 above is replaced by a simple type in the xsi:type global attribute in the instance document Validation parsing is performed	An error occurs.	An error does not occur.
18	When an inappropriate xpath attribute is specified in the xsd:selector element	The KECX06243-E error is reported.	The KECX06241-E error is reported.
19	When a path format called element-name/ is specified in the xpath attribute of the field (xsd:field element) of the xsd:key element	An error occurs.	An error does not occur.
20	When multiple elements with different types are specified in the selector (xsd:selector element) of the xsd:key element, and the same value is applied to the key element in the instance document	An error occurs.	An error does not occur.
21	When a long URI character string (63 bytes or more) is specified for an element of the xsd:anyURI type	An error occurs.	An error does not occur.
22	When a list demarcated by blanks, such as list restriction union is specified in the final attribute of the xsd:simpleType element	An error occurs.	An error does not occur.
23	When a URI including double-byte characters is inserted in an element for which derivation by the restriction is performed based on xsd:anyURI	An error occurs.	An error does not occur.
24	When the value of seconds is given in 10 or more digits after the decimal point in the element for which derivation by the restriction is performed with xsd:time as the base type (example: 13:20:15.2147483648)	An error occurs.	An error does not occur.
25	When xsd:length is fixed at 2 or more in the derivation by the restriction performed with xsd:IDREF as the base	An error occurs.	An error does not occur.
26	When validation parsing is performed for an XML document that satisfies the following condition: A schema document that either does not exist or cannot be read in the xsi:schemaLocation attribute or the xsi:noNamespaceSchemaLocation attribute of the input XML document is specified	A warning does not occur.	The KECX06069-E warning is reported.
27	When validation parsing of an XML document is performed by using a schema document that satisfies the following conditions: A schema document that either does not exist or cannot be read in the schemaLocation attribute of xs:import and xs:include is specified The xs:redefine element satisfies either of the following points (i) or (ii), and a schema document that either does not exist or cannot be read in the schemaLocation attribute is specified (i) The child element of the xs:redefine element is only the xs:annotation element (ii) A child element does not exist in the xs:redefine element	An error does not occur.	The KECX06069-E warning is reported.
28	When a URI with an invalid syntax is specified in either of the following locations: xsi:schemaLocation attribute or xsi:noNamespaceSchemaLocation attribute of the instance document schemaLocation attribute of the include element, import element, or redefine element	The operation is different in 06-00 and 07-00 or later versions depending on the combination of the URI specification location and the URI with an invalid syntax. For example, the error to be reported might be different, or an exception that did not occur in version 06-00 might occur in version 07-00 or later.
29	When a URI with an invalid syntax is specified in one of the following locations: namespace attribute of the anyAttribute element namespace attribute of the any element system attribute of the notation element source attribute of the appinfo element source attribute of the documentation element namespace attribute of the import element	The KECX06229-E error is reported.	An error does not occur.
30	When a URI with an invalid syntax is specified in either of the following locations: targetNamespace of the schema element schemaLocation attribute of the redefine element	The KECX06229-E error is reported.	The KECX06039-E or the KECX06069-E error is reported.

Note:

For details on the messages, see 11. KECX (Messages Output by Cosminexus XML Processor) in the manual uCosminexus Application Server Messages.