I50/IEC INTERNATIONAL STANDARD 19503 First edition 2005-11-01 Information technology - XML Metadata Interchange (XMl) Technologiesdelinformation-EchangedemetadonneesXML(XMI) Reference number ISO/IEC19503:2005(E) IEC ISO @ISO/IEC2005 I50/IEC19503:2005(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO/EC2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO'smemberbodyinthecountryoftherequester. ISO copyright office Casepostale56:CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org ii iSO/IEC2005-Allrightsreserved I50/IEC19503:2005(E) Contents Foreword vili Introduction IX 1 Scope. 2 Normative references 2.1 Identical Recommendations I International Standards 2.2 International Standards 3 Abbreviations. 4 XMI Schema Design Principles. 3 4.1 Purpose ... 4.2 Use of XML Schemas.. 4.2.1 XML Validation of XMI documents. 4.2.2 Requirements for XMI Schemas .. 4.3 Basic Principles.. 4.3.1 Required XML Declarations ..... 4.3.2 Metamodel Class Representation. 4.3.3 Metamodel Extension Mechanism. 4.4 XMI Schema and Document Structure 4.5 XMI Model 4.5.1 XML Schema for the XMI Model, 4.5.2 XMI Model Classes .... 4.5.3XMI... 4.5.4 Extension.. 4.5.5 Documentation 10 4.5.6 Add, Replace, and Delete .. 10 4.6 XMI Attributes.. 12 4.6.1 Element Identification Attributes.. 12 4.6.2 Linking Attributes. 13 4.6.3 Version Attribute.. 4.6.4 Type Attribute .. 4 4.7 XMI Type .... 4.8 Metamodel Class Specification . 4.8.1 Namespace Qualified XML Element Names..... 15 4.8.2 Metamodel Multiplicities ... 4.8.3 Class Specification. 16 4.8.4 Attribute Specification. 16 4.8.5 Reference Specification 18 4.8.6 Containment Specification .. 18 4.8.7 Inheritance Specification ... 18 4.8.8 Derived Information .... 18 4.9 Transmitting Incomplete Metadata 18 4.9.1 Interchange of Model Fragments . 19 4.9.2 XMI Encoding .. 19 4.9.3Example 19 @ISO/IEC 2005 - All rights reserved ili I50/IEC19503:2005(E) 4.10 19 4.10.1 Design Principles. 19 4.10.2 Linking ... 4.10.3 Example from UML. .22 4.11 Tailoring Schema Production . .23 4.11.1 XMI Tag Values.. 23 4.11.2 Tag Value Constraints... 4.11.3 Scope ... 4.11.4 XML element vs XML attribute .25 4.11.5 UML profile for XML and XMI.... 4.11.6 Effects on Document Production.. .26 4.11.7 Summary of XMI Tag Scope and Affect.... 4.12 Transmitting Metadata Differences ... 28 4.12.1 Definitions... 29 4.12.2 Differences ... 29 ..12..3 XMI Encoding ........ .29 4.12.4 Example ... .30 4.13 Document Exchange with Multiple Tools .31 ........ 4.13.1 Definitions... .31 4.13.2 Procedures....... 4.13.3 Example . .32 4.14 General Datatype Mechanism... 5 XML Schema Production... .35 5.1 Purpose... ..35 5.2 XMI Version 2 Schemas.... ...35 5.2.1 EBNF... .35 5.2.2 Fixed Schema Declarations , ..43 5.2.3 Schema Production Rules for Non-Primitive Data. ..48 6 XML Document Production.. .49 6.1 6.2 Introduction. .49 6.3 EBNF Rules Representation. .49 6.3.1 Overall Document Structure.... 6.3.2 Overall Content Structure... .51 6.3.3 Object Structure .... .52 6.3.4 References .. .55 6.3.5 Object Contents... 57 6.3.6 Packages.... .59 6.3.7 Attributes .. .59 6.4 Additional Examples. .60 6.4.1Inheritance.... 6.4.2 Nested Packages . .61 6.4.3 Derived Types and References.... 6.5 Document Production Rules for Non-Primitive Data 63 . Structure Type..... ..63 6.