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Standard
ISO/IEC 23415
First edition
Information technology — Data
Format Description Language
2024-04
(DFDL) v1.0 Specification
Reference number
ISO/IEC 23415:2024(en) © ISO/IEC 2024
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ISO/IEC 23415:2024(en)
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© ISO/IEC 2024
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Published in Switzerland
© ISO/IEC 2024 – All rights reserved
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ISO/IEC 23415:2024(en)
Contents
1 Introduction . 9
1.1 Why is DFDL Needed? . 10
1.2 What is DFDL? . 10
Simple Example . 10
1.3 What DFDL is not . 13
1.4 Scope of version 1.0 . 13
2 Overview of the Specification . 15
3 Notational and Definitional Conventions . 16
3.1 Glossary and Terminology . 16
3.2 Failure Types . 16
4 The DFDL Information Set (Infoset) . 17
4.1 "No Value'' . 18
4.2 Information Items . 18
Document Information Item . 18
Element Information Items . 18
4.3 DFDL Information Item Order . 19
4.4 DFDL Augmented Infoset . 19
5 DFDL Schema Component Model . 20
5.1 DFDL Simple Types . 20
5.2 DFDL Subset of XML Schema . 21
5.3 XSD Facets, min/maxOccurs, default, and fixed . 22
MinOccurs, MaxOccurs . 23
MinLength, MaxLength . 23
MaxInclusive, MaxExclusive, MinExclusive, MinInclusive, TotalDigits, FractionDigits . 23
Pattern . 23
Enumeration Values . 23
Default .
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