[ome-devel] OME-XML validation

[Curtis Rueden]

Hi,

I'm trying to learn about XML validation. I've tried validating the 
ome.xsd schema, as well as the Sample.ome file, using the online XSD 
schema validator at http://apps.gotdotnet.com/xmltools/xsdvalidator/ but 
I'm running into trouble.

Attempting to validate Sample.ome by itself produces a long string of 
errors claiming that none of the elements are declared:

--------
Error at (40,2): The 
'http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd:OME' element is 
not declared. An error occurred at , (40, 2).&amp;lt;OME<br> xmlns = 
"http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd"<br> xmlns:STD 
= "http://www.openmicroscopy.org/XMLschemas/STD/RC2/STD.xsd"<br> 
xmlns:Bin =<br> 
"http://www.openmicroscopy.org/XMLschemas/BinaryFile/RC1/BinaryFile.xsd"<br> 
xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"<br> 
xsi:schemaLocation =<br> 
"http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd<br> 
http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd<br> 
http://www.openmicroscopy.org/XMLschemas/STD/RC2/STD.xsd<br> 
http://www.openmicroscopy.org/XMLschemas/STD/RC2/STD.xsd"&amp;gt; Error 
at (45,3): The 
'http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd:Project' 
element is not declared. An error occurred at , (45, 3).&amp;lt;Project 
Name = "Stress Response Pathway" ID = 
"urn:lsid:foo.bar.com:Project:123456"&amp;gt;<br> --------

Attempting to validate just the ome.xsd schema document produces a long 
string of errors claiming that all the elements have already been declared:

--------
The global element 
'http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd:OME' has 
already been declared. An error occurred at , (39, 3). The global 
element 'http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd:Image' 
has already been declared. An error occurred at , (65, 3). The global 
element 
'http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd:CreationDate' 
has already been declared. An error occurred at , (132, 3).
--------

Attempting to validate the Sample.ome file against the ome.xsd schema 
with the proper NamespaceURI 
(http://www.openmicroscopy.org/XMLschemas/OME/FC/ome.xsd), I get the 
same long string of errors regarding elements having already been declared.

Am I missing something obvious? Is there a recommended technique for 
validating the OME schema files and for OME-XML documents?

Thanks,
Curtis