
3
Document Type
Definitions (DTD)
3.1 INTRODUCTION TO DTD 101
3.2 DOCUMENT TYPE DECLARATION 103
3.3 ELEMENT TYPE DECLARATION 108
3.3.1 Valid and Well-formed Documents 110
3.3.2 Specifying Sequences, Occurrences
and Choices 112
3.3.3 Empty, Any, and Mixed Content 117
3.4 ATTRIBUTE DECLARATION 118
3.4.1 Defaults for Attributes 119
3.4.2 Types of Attributes 121
3.5 CONDITIONAL SECTIONS 127
3.6 LIMITATIONS OF DTDs 132
KEY TERMS AND CONCEPTS 132
CHAPTER SUMMARY 133
PRACTICE SET 135
True or False Questions 135
Multiple Choice Questions 135
Detailed Questions 137
Exercises 137
ANSWERS TO EXERCISES ...