Another approach to reusing XML schemas is to use the WSDL import mechanism. You can proceed by separating the WSDL document into modular components and then importing and bringing them together. This allows you to define XML schemas that are independent of the WSDL document and therefore reusable.
You can use the xsd:import element to import the XML schema into the WSDL document. Existing XML schemas can be reused across multiple WSDL documents.