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Chapter 5. Let's Start Ruling > Richer Diagnostics
5.3. Richer Diagnostics
In the previous examples, you wrote text to display when errors are raised in the assert and report elements themselves.
NOTE
Other schema languages such as W3C XML Schema and RELAX NG do not let the user define the text of his error messages. These messages are generated by the schema processors and can be, depending on the tool and the context, very hard to read—even for geeks. If it is very important for you to generate user-friendly error messages that end users can understand, consider using Schematron for this very reason.
