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Schematron
| Birthplace: |
Academia Sinica Computing Centre |
| Age: |
2 years |
| Parents: |
XPath and Assertion Grammars |
| Type: |
Tree Pattern |
| Formalism: |
Assertion grammars; rule-based systems |
| Syntax: |
XML instance |
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Uses a rule-based rather than grammar-based validation model
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Can express nearly arbitrary constraints
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Phases and abstract rules provide many modularity features
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Supports versioned namespaces
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Quite verbose
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No default values