TEST :Syntax Checking for simpleType Declaration : Derived datatype from Union with constraining facet of period
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#Simple_Type_Definitions
| Item | Value | 
|---|---|
| title | stF028 - stF028 | 
| name | stF028 | 
| source | ../stF028.xsd | 
| schemaName | ../stF028.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.simpletype.stf028 |