You can perform verifications in your test cases using properties. These verification properties are different from class properties, which are defined using the property declaration. Verification properties are used only when verifying the state of your application in a test case. Silk Test Classic comes with built-in verification properties for all classes of GUI objects.
You can define your own verification properties, which will be added to the built-in properties listed in the Verify Window dialog box when you record a test case.