XML Schemas can be selected for comparison in various ways. You can open the XML Schemas in a new XML Schema Comparison window, open an XML Schema comparison document (*.xsdif) from the file system, or change the XML Schemas in the currently open XML Schema Comparison window. XML Schemas that have already been compared before are available in a drop-down list in the title bar of each component. Note that you can select only one schema per component.
1.In the left component of an existing XML Schema Comparison window, do one of the following:
•Click the Browse icon and select a file in the Windows Open dialog box.
•Double-click the title bar, enter the path to a file and press Enter.
•Click the button and select a previously compared XML Schema from the drop-down list.
2.Repeat step 1 for the right component.
To open an XML Schema comparison document:
•Select the menu option File | Open Comparison File... and choose an *.xsdif file from the file system. The comparison is opened in a new XML Schema Comparison window with the name of the comparison document appearing in the comparison window tab.