1. XML Schema

2. Why Validate XML? XML documents can generally have any structure XML grammars define specific document structures Validation is the act of checking an XML document against a DTD or XML schema defined for a grammar XML documents can generally have any structure XML grammars define specific document structures Validation is the act of checking an XML document against a DTD or XML schema defined for a grammar

3. XSD <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://tempuri.org/example" xmlns:ex="http://tempuri.org/example"> …schema definitions go here… <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://tempuri.org/example" xmlns:ex="http://tempuri.org/example"> …schema definitions go here…

4. What Are Built-In Datatypes? W3C XML schemas define many built-in datatypes Built-in datatypes can be primitive or derived Examples: integer,long,short… W3C XML schemas define many built-in datatypes Built-in datatypes can be primitive or derived Examples: integer,long,short…

5. Element Declarations <xs:element name="elementname" type="datatype“ (fixed="fixedvalue" | default="defaultvalue") minOccurs="value" maxOccurs="value" … /> <xs:element name="author" type="xs:string" maxOccurs="unbounded" /> <xs:element name="elementname" type="datatype“ (fixed="fixedvalue" | default="defaultvalue") minOccurs="value" maxOccurs="value" … /> <xs:element name="author" type="xs:string" maxOccurs="unbounded" />

6. Attribute Declarations <xs:attribute name="attributename" type="datatype" (fixed="fixedvalue" | default="defaultvalue") use= ("optional" | "prohibited" | "required") … /> <xs:attribute name="attributename" type="datatype" (fixed="fixedvalue" | default="defaultvalue") use= ("optional" | "prohibited" | "required") … />

7. Derive New Simple Types

10. How to Reference Simple Types

12. Better idea

13. Complex Datatypes

14. Explicit complex type for reuse

15. Element that can only contain one of a predefined set Element that can only contain one of a predefined set

16. Elements that contain optional child elements in any order Elements that contain optional child elements in any order

17. Complex Datatypes with Attributes

18. Extend the base content by adding an attribute 12.75 12.75

19. How to Reference Existing Declarations

21. How to Create Element Groups

23. How to Create Attribute Groups

24. Derive New Complex Types