This figure shows a screen shot of XMLSpy opened for the file purchaseOrder.xsd. Under the menu bar and tool bar are several panes, including the following:

• Project pane - shows a tree of XML schema folders.
• Main pane - shows XML elements and types, with corresponding annotations.
• Components pane - shows the Elm tab listing the PurchaseOrder element.
• Details pane - shows the Details tab listing details of the PurchaseOrder element.