Understanding XML validation in switchyard.xml

Issue

• I am having a hard time understanding this example: validate-xml

• In switchyard.xml I see the following blocks but I cannot see how this is connected to the in/out messages.

  <transforms>
      <transform.xslt xmlns="urn:switchyard-config:transform:1.0" from="{urn:switchyard-quickstart:validate-xml:0.1.0}order" to="{urn:switchyard-quickstart:validate-xml:0.1.0}orderAck" xsltFile="xslt/order.xslt" failOnWarning="false"/>
  </transforms>
  <validates>
      <validate.xml xmlns="urn:switchyard-config:validate:1.0" name="{urn:switchyard-quickstart:validate-xml:0.1.0}order" schemaType="XML_SCHEMA" namespaceAware="true">
          <schemaFiles>
              <entry file="/xsd/orders.xsd"/>
          </schemaFiles>
          <schemaCatalogs>
              <entry file="/xsd/catalog.xml"/>
          </schemaCatalogs>
      </validate.xml>
  </validates>
  

• For example, what does name="{urn:switchyard-quickstart:validate-xml:0.1.0}order" mean in this line?

  <validate.xml xmlns="urn:switchyard-config:validate:1.0" name="{urn:switchyard-quickstart:validate-xml:0.1.0}order"
  

• Is there a place where I can understand the switchyard.xml structure?

• Should the "<validates>" be configured manually or is there a GUI option to configure it?
• How can I configure the "<validates>" in the GUI?