The AILLA Custom Schema is a hierarchical XML-based bibliographic description schema created by the AILLA. AILLA's Custom Schema is used to describe the languages placed in the language database and is only used by AILLA Staff..
XML Path Language (XPath) is a query language employed by the XML forms in the repository to both write the proper nodes to the AILLA XML datastream and read the nodes from that datastream to display in the form.
How XPath Syntax and XML match up (color coded):
XPath Syntax noted in metadata mapping sheets and employed in XML forms
recordInfo/recordIdentifier
Resulting XML in AILLA datastream
<recordInfo>
<recordIdentifier>ailla:242423</recordIdentifier>
</recordInfo>