1.0 Introduction
1.1 Status
1.2 Origin and Goals
1.3 Relation to Other Standards
1.4 Terminology

2.0 XSchema Syntax
2.1 The XSchema Document
2.2 Element Declarations
2.3 Attribute Declarations
2.4 Content Model Declarations
2.5 XSchema Extensions
2.5.1 Documentation Extensions
2.5.2 Constraints on Extensions

3.0 XSchema and Namespaces
3.1 The XSchema Namespace
3.2 Interaction with Other Namespaces
3.3 Note about Namespace Usage

4.0 XSchema Transformation to XML 1.0 DTD
4.1 Transformation Models
4.2 Transformation Losses

5.0 Connecting XSchemas to XML Documents
5.1 Processing Models
5.2 Processing Instruction

Additional Notes:

1. XSchemas and XML 1.0 DTD Interactions