XML Metadata Interchange (XMI)
Specification
May 2003
Version 2.0
formal/03-05-02
An Adopted Specification of the Object Management Group, Inc.
Copyright © 1998, 1999, 2000, 2001 IBM Corporation
Copyright © 2002, Object Management Group
Copyright © 1998, 1999, 2000, 2001 Softeam
Copyright © 1998, 1999, 2000, 2001 Unisys Corporation
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ISSUE REPORTING
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May 2003 XML Metadata Interchange, v2.0 i
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1. XMI Schema Design Principles . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2 Use of XML Schemas . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.1 XML Validation of XMI documents. . . . . . . 1-3
1.2.2 Requirements for XMI Schemas. . . . . . . . . . 1-3
1.3 Basic Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.3.1 Required XML Declarations. . . . . . . . . . . . . 1-4
1.3.2 Metamodel Class Representation . . . . . . . . . 1-4
1.3.3 Metamodel Extension Mechanism . . . . . . . . 1-4
1.4 XMI Schema and Document Structure. . . . . . . . . . . . . . 1-5
1.5 XMI Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.5.1 XML Schema for the XMI Model . . . . . . . . 1-6
1.5.2 XMI Model classes. . . . . . . . . . . . . . . . . . . . 1-6
1.5.3 XMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.5.4 Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.5.5 Documentation . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.5.6 Add, Replace, and Delete . . . . . . . . . . . . . . . 1-11
1.6 XMI Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.6.1 Element Identification Attributes . . . . . . . . . 1-12
1.6.2 Linking Attributes . . . . . . . . . . . . . . . . . . . . 1-13
1.6.3 Version Attribute . . . . . . . . . . . . . . . . . . . . . 1-14
1.6.4 Type Attribute. . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.7 XMI Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Table of Contents
