ISO/IEC INTERNATIONAL STANDARD 15474-2 First edition 2002-10-15 Information technology CDIF framework - Part 2: Modelling and extensibility Technologies de Iinformation Cadre de reférence CDIF. Partie 2: Modeélisation et extension Reference number ISO/IEC 15474-2:2002(E) IEC Tso @ISO/IEC2002 py IHS under lic itted without license from IHS Not for Resale ISO/IEC 15474-2:2002(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 parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO/IEC2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO/EC2002-Allrights reserved ermitted without license from IHS Not for Resale ISO/IEC 15474-2:2002(E) Contents Scope 2 Conformance 3 Normative references .2 4 Terms 4.1 From other standards. 4.1.1 ISO/EC15474-1 3 4.1.2 ISO/IEC13238-1 4.2 For this standard. 5 Symbols (and abbreviated terms).. 5.1 Naming and diagramming conventions 5.2 Abbreviations .... 6 CDIF meta-metamodel concepts and facilities.. 6.1 Introduction... 6.2 Modelling approach 6.2.1 6.2.2 Subject 6.2.3 Many-to-many meta-relationships 6.2.4 Attributedmeta-relationships 6.2.5 Subtyping of meta-entities... 6.2.6 Multiple inheritance inmeta-entities. 6.2.7 Subtyping of meta-relationships .... 6.2.8 Multiple inheritanceof meta-relationships.. 6.2.9 Arity of meta-relationships......... 6.2.10 Mutual exclusivity of meta-relationships.. 6.3 6.3.1 Explicitand implicituseofCollectableMetaObjectsinsubjectareas 6.3.2 Rules for defining subject area. 6.3.3 10 6.3.4 Subject areadiagrams 10 6.4 Metamodelextensibility 10 6.4.1 Introduction 10 6.4.2 Extensibility 11 6.5 Exporter responsibilities 12 6.5.1 Introductior 12 6.5.2 Extensibility 12 6.5.3 Maximumo output 12 6.5.4 Meta-attributes... 12 6.6 Importerresponsibilities 12 6.6.1 12 6.6.2 Information retention. 12 6.6.3 Working metamodel 12 6.6.4 13 7 Modelling conventions 7.1 Naming of meta-objects . 13 7.1.1 Names 13 7.1.2 Uniqueness of names. 13 7.2 Meta-object graphical notation 13 7.2.1 Introduction. 13 7.2.2 Meta-entity symbol. 14 Copyright Intemational Organization for Standardization All rights reserved ili No reprodu ed without license from IHS Not for Resale ISO/IEC15474-2:2002(E) 7.2.3 7.2.4 Meta-relationship cardinality symbol ...... 15 7.2.5 Meta-entity subtype hierarchy symbol.. 7.2.6 Meta-relationship subtype hierarchy.... 16 7.2.7 Mutual exclusivityof meta-relationships 17 7.2.8 17 7.3 Meta-object definitionformat 19 7.3.1 Introduction..... 19 7.3.2 Subject area definition . 7.3.3 Meta-entity definition.. 7.3.4 Meta-attribute definition... 7.3.5 Meta-relationship definition ... 7.4 Meta-object reference format. 7.5 Meta-object summary format. 7.5.1 .24 7.5.2 AttributableMetaObjectclassificationhierarchy .24 7.5.3 MetaEntity and MetaRelationship summaries..... .24 8 Meta-metamodel overview ... 25 8.1 Introduction. 25 8.2 Meta-metamodel description . 25 8.3 Meta-metamodel diagram... 26 9 Meta-metamodel summary.... 26 9.1 AttributableMetaObjectclassificationhierarchy 9.1.1 Introduction... 9.1.2 Classification hierarchy ... 9.2 Meta-