Table of Contents

1 -  AS/NZS ISO/IEC 15474.2:2003 INFORMATION TECHNOLOGY-CDIF FRAMEWORK - MODELLING AND EXTENSIBILITY
4 -  PREFACE
5 -  CONTENTS
9 -  1 Scope
10 -  2 Conformance
10 -  3 Normative references
11 -  4 Terms and definitions
11 -  4.1 From other standards
11 -  4.1.1 ISO/IEC 15474-1
11 -  4.1.2 ISO/IEC 13238-1
11 -  4.2 For this standard
12 -  5 Symbols (and abbreviated terms)
12 -  5.1 Naming and diagramming conventions
12 -  5.2 Abbreviations
12 -  6 CDIF meta-metamodel concepts and facilities
12 -  6.1 Introduction
12 -  6.2 Modelling approach
12 -  6.2.1 Introduction
13 -  6.2.2 Subject areas
13 -  6.2.3 Many-to-many meta-relationships
13 -  6.2.4 Attributed meta-relationships
13 -  6.2.5 Subtyping of meta-entities
14 -  6.2.6 Multiple inheritance in meta-entities
15 -  6.2.7 Subtyping of meta-relationships
16 -  6.2.8 Multiple inheritance of meta-relationships
16 -  6.2.9 Arity of meta-relationships
16 -  6.2.10 Mutual exclusivity of meta-relationships
16 -  6.3 Subject areas
16 -  6.3.1 Explicit and implicit use of CollectableMetaObjects in subject areas
17 -  6.3.2 Rules for defining subject area
18 -  6.3.3 Working metamodel
18 -  6.3.4 Subject area diagrams
18 -  6.4 Metamodel extensibility
18 -  6.4.1 Introduction
19 -  6.4.2 Extensibility
20 -  6.5 Exporter responsibilities
20 -  6.5.1 Introduction
20 -  6.5.2 Extensibility
20 -  6.5.3 Maximum output
20 -  6.5.4 Meta-attributes
20 -  6.6 Importer responsibilities
20 -  6.6.1 Introduction
20 -  6.6.2 Information retention
20 -  6.6.3 Working metamodel
21 -  6.6.4 Meta-attributes
21 -  7 Modelling conventions
21 -  7.1 Naming of meta-objects
21 -  7.1.1 Names
21 -  7.1.2 Uniqueness of names
21 -  7.2 Meta-object graphical notation
21 -  7.2.1 Introduction
22 -  7.2.2 Meta-entity symbol
22 -  7.2.3 Meta-relationship symbol
23 -  7.2.4 Meta-relationship cardinality symbol
24 -  7.2.5 Meta-entity subtype hierarchy symbol
24 -  7.2.6 Meta-relationship subtype hierarchy
25 -  7.2.7 Mutual exclusivity of meta-relationships
25 -  7.2.8 Instance diagrams
27 -  7.3 Meta-object definition format
27 -  7.3.1 Introduction
27 -  7.3.2 Subject area definition
28 -  7.3.3 Meta-entity definition
29 -  7.3.4 Meta-attribute definition
30 -  7.3.5 Meta-relationship definition
31 -  7.4 Meta-object reference format
32 -  7.5 Meta-object summary format
32 -  7.5.1 Introduction
32 -  7.5.2 AttributableMetaObject classification hierarchy
32 -  7.5.3 MetaEntity and MetaRelationship summaries
33 -  8 Meta-metamodel overview
33 -  8.1 Introduction
33 -  8.2 Meta-metamodel description
34 -  8.3 Meta-metamodel diagram
34 -  9 Meta-metamodel summary
34 -  9.1 AttributableMetaObject classification hierarchy
34 -  9.1.1 Introduction
35 -  9.1.2 Classification hierarchy
35 -  9.2 Meta-meta-entity summary
37 -  9.3 Meta-meta-relationship summary
38 -  10 Meta-metamodel specification
38 -  10.1 Data types specification
38 -  10.1.1 Introduction
38 -  10.1.2 Boolean
38 -  10.1.3 Date
38 -  10.1.4 Enumerated
39 -  10.1.5 Float
39 -  10.1.6 Identifier
39 -  10.1.7 Integer
39 -  10.1.8 Point
39 -  10.1.9 String
39 -  10.1.10 Text
39 -  10.1.11 Time
40 -  10.2 Meta-meta-entity and Meta-meta-attribute specifications
40 -  10.2.1 AttributableMetaObject
41 -  10.2.2 CollectableMetaObject
41 -  10.2.3 MetaAttribute
43 -  10.2.4 MetaEntity
44 -  10.2.5 MetaObject
47 -  10.2.6 MetaRelationship
49 -  10.2.7 SubjectArea
50 -  10.3 Meta-meta-relationship specifications
50 -  10.3.1 AttributableMetaObject. HasSubtype. AttributableMetaObject.HasSubtype.AttributableMetaObject
51 -  10.3.2 CollectableMetaObject.IsDefinedIn.SubjectArea
52 -  10.3.3 CollectableMetaObject.IsUsedIn.SubjectArea
53 -  10.3.4 MetaAttribute.IsLocalMetaAttributeOf.AttributableMetaObject
53 -  10.3.5 MetaRelationship.HasDestination.MetaEntity
54 -  10.3. 6 MetaRelationship.HasSource.MetaEntity

Abstract

Includes the definition of the CDIF meta-metamodel and describes the rules and notations used throughout the CDIF family of standards. The rules for extending the CDIF semantic metamodel are also defined.

RECONFIRMATION NOTICE
Technical Committee IT-015 has reviewed the content of this publication and in accordance
with Standards Australia procedures for reconfirmation, it has been determined that the
publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original
date of publication. Users are advised to ensure that they are using the latest versions of
such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 17 March 2014.
The following are represented on Technical Committee IT-015:
Australian Computer Society
Australian Society for Technical Communication (NSW)
Charles Sturt University
Department of Defence (Australia)
Griffith University
La Trobe University
National Association of Testing Authorities Australia
National ICT Australia
NSW Business Chamber
Quantitative Enterprise Software Performance
Systems Engineering Society of Australia
University of Technology, Sydney

Scope

The CDIF family of standards is primarily designed to be used as a description of a mechanism for transferring information between modelling tools. It facilitates a successful transfer when the authors of the importing and exporting tools have nothing in common except an agreement to conform to CDIF.
The CDIF family of standards includes a semantic metamodel and a transfer format definition. It also includes the specification of a meta-metamodel and associated rules that define a framework for the semantic metamodel and the transfer format. The language that is defined for the transfer format also has applicability as a general language for Import/Export for repositories. The CDIF semantic metamodel also has applicability as the basis of standard definitions for use in repositories.
The standards that form the complete family of CDIF Standards are documented in ISO/IEC 15474-1:2002, Information technology - CDIF framework - Part 1: Overview. These standards cover the overall framework, the transfer format and the CDIF semantic metamodel.
The diagram in Figure 1 depicts the various standards that comprise the CDIF family of standards. The shaded box depicts this Standard and its position in the CDIF family of standards.
This document (ISO/IEC 15474-2:2002 , Information technology - CDIF framework - Part 2: Modelling and extensibility) includes the definition of the CDIF meta-metamodel and describes the rules and notations used throughout the CDIF family of standards. The rules for extending the CDIF semantic metamodel are also defined. This document is intended to be used by anyone wishing to understand and/or use CDIF. This document provides an introduction to the entire CDIF family of standards. It is suitable for:
- Those evaluating CDIF,
- Those who wish to understand the principles and concepts of a CDIF transfer, and
- Those developing importers and exporters.
The document, ISO/IEC 15474-1:2002 , Information technology - CDIF framework - Part 1: Overview, and this framework document ISO/IEC 15474-2:2002 , Information technology - CDIF framework - Part 2: Modelli ng and extensibility, should be read first when initially exploring CDIF and before attempting to read other documents in the CDIF family of standards.
While there are no specific prerequisites for reading this document, it will be helpful for the reader to have familiarity with the following:
- Entity-Relationship-Attribute modelling;
- Modelling (CASE) tools;
- Information repositories;
- Data dictionaries;
- Multiple meta-layer modelling.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 20/05/2014. This standard has been reconfirmed in Australia in 2014 and remains current in New Zealand. Reconfirmation Notice 20/05/2014
Pages
ISBN
Committee	IT-015
Supersedes	DR 03132-03133 CP DR 03133 CP