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XML Schemas

XML Schemas


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This course gives the student who knows the fundamentals of XML a detailed introduction to the XML Schema standard for defining document type information.

The first module introduces the new XML Schema recommendation. Students review the shortcomings of the DTD for expressing type information, and learn how to use XML Schema to create strict document models. Schema data types and structures are studied, allowing precise grammar and validation rules to be defined for document content.

A second module offers intermediate-to-advanced instruction in effective use of the new XML Schema recommendation. Students build skills in use of keys and key references to associate elements based on key fields; cover complex-type extension; use of multiple namespaces and schema; and finally a chapter in best-practices in schema design.

Learning Objectives
- Develop XML Schema to express precise type information for an XML document.
- Associate schema with XML instance documents.
- Validate instance documents against associated schema.
- Define simple types, and use value restrictions and enumerations to constrain values.
- Define list types and union types.
- Create complex types, including simple types and other complex types, and empty- and mixed-content types.
- Define element and attribute groups for better reuse and more maintainable schema.
- Associate elements of different types using keys and key references.
- Create derived simple and complex types using restriction and/or extension.
- Develop hierarchies of reusable complex types using type extension.
- Populate multiple namespaces using schema, and import and use those namespaces in valid instance documents.
- Design schema that maximize validation capabilities and type reuse.
- Use XSLT as an additional stage of document validation, to catch patterns that XML Schema cannot be used to express.



• Validating elements
• Validating attributes
• Datatypes (date, time, integer etc.)
• Creating datatypes using pattern matching
• Global versus Local Elements
• Reusing (parts of) Schemas in other Schemas
• Namespaces



A basic knowledge of XML



Those who wish to learn how to validate the structure and content of XML efficiently