What do dotted XML attributes mean?

Question

XML

Hello.
I came across XML with an interesting structure: dotted attributes. Haven't seen this before.

<?xml version="1.0" encoding="ISO-8859-1"?>
<GENERAL xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" APP="01"  xsi:noNamespaceSchemaLocation="XSD_SPECIFIC.xsd">
  <PART itsPART.CHAR.CHAR_ID="CHAR" itsPART.PART.ID="01"/>
</GENERAL>

And here is another file:

<?xml version="1.0" encoding="ISO-8859-1"?>
<CHAR xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" CHAR_ID="CHAR" xsi:noNamespaceSchemaLocation="XSD_CHAR_SPECIFIC.xsd">
  <PART ID="01" ENABLE="FALSE"/>
</CHAR>

What are these dotted attributes? I did not find anything similar in the specification.
It looks like these files are connected ... Maybe some kind of validation? Unfortunately, I don't have XSD.

Answer 1

I believe that this is an error in the formation of the document. For example, suppose a builder has a setAttr method that applies to a node. There is a PART node.
node.setAttr(getAttrNameFromDB(), "CHAR");
We push the value "<b>itsPART.CHAR.CHAR_ID</b>" into the database. PROFIT!!!