1、Adopted by INCITS (InterNational Committee for Information Technology Standards) as an American National Standard.Date of ANSI Approval: 12/30/2003Published by American National Standards Institute,25 West 43rd Street, New York, New York 10036Copyright 2003 by Information Technology Industry Council
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3、his publication may be reproduced in any form, including an electronic retrieval system, withoutthe prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW,Washington, DC 20005.Printed in the United States of AmericaReference numberISO
4、/IEC 11179-3:2003(E)ISO/IEC 2003INTERNATIONAL STANDARD ISO/IEC11179-3Second edition2003-02-15Information technology Metadata registries (MDR) Part 3: Registry metamodel and basic attributes Technologies de linformation Registres de mtadonnes (MDR) Partie 3: Mtamodle de registre et attributs de base
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10、ax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2003 All rights reservedCopyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 1
11、1179-3:2003(E) ISO/IEC 2003 All rights reserved iiiContents Page Foreword vi Introduction vii 1 Scope 1 1.1 Scope Structure of a Metadata Registry 1 1.2 Scope Basic attributes of metadata items. 2 1.3 Scope Aspects not currently addressed .2 1.4 Areas of Applicability . 2 2 Normative references . 2
12、3 Definitions 3 3.1 Definitions of Metamodel Constructs . 3 3.2 Broad Terms used in this part of ISO/IEC 11179 . 5 3.3 Alphabetical list of metadata objects in the metamodel. 8 3.4 List of Abbreviations 27 4 Structure of a Metadata Registry. 27 4.1 Metamodel for a Metadata Registry 27 4.2 Applicatio
13、n of the metamodel 28 4.3 Specification of the metamodel. 28 4.4 Types, Instances and Values . 29 4.5 Extensibility . 29 4.6 Date References 29 4.7 Description of metamodel 29 4.8 Administration and Identification region 32 4.9 Naming and Definition Region. 38 4.10 Classification Region 41 4.11 Data
14、 Element Concept Region. 43 4.12 Conceptual and Value Domain Region . 45 4.13 Data Element Region 49 4.14 Consolidated Metamodel 53 5 Basic attributes . 55 5.1 Use of basic attributes 55 5.2 Common attributes . 55 5.3 Attributes specific to Data Element Concepts. 57 5.4 Attributes specific to Data E
15、lements 58 5.5 Attributes specific to Conceptual Domains . 58 5.6 Attributes specific to Value Domains . 58 5.7 Attributes specific to Permissible Values 58 5.8 Attributes specific to Value Meanings 59 6 Conformance . 59 6.1 Degree of Conformance . 59 6.2 Levels of Conformance 60 6.3 Obligation. 60
16、6.4 Conformance to prior editions of this Standard 60 6.5 Implementation Conformance Statement (ICS) . 61 6.6 Roles and Responsibilities for Registration 61 Annex A (informative) Alphabetical List of Terms 62 Copyright American National Standards Institute Provided by IHS under license with ANSINot
17、for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 11179-3:2003(E) iv ISO/IEC 2003 All rights reservedAnnex B (informative) Modelling Notation .65 B.1 Modelling symbols 65 Annex C (informative) Mapping the ISO/IEC 11179-3:1994 basic attributes to the ISO/IEC 11179
18、-3:2002 metamodel and basic attributes69 C.1 Introduction69 C.2 Mapping the Basic Attributes.72 Bibliography99 Copyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 11179-3:200
19、3(E) ISO/IEC 2003 All rights reserved vTable of Figures Figure 1 Common facilities for all Administered Items 30 Figure 2 Types of Administered Items. 31 Figure 3 High-level metamodel 32 Figure 4 Administration and identification metamodel region . 33 Figure 5 Administration and identification regio
20、n Classes used as Composite Datatypes 33 Figure 6 Naming and Definition metamodel region. 38 Figure 7 Classification metamodel region . 41 Figure 8 Data Element Concept metamodel region 43 Figure 9 Conceptual and value domain metamodel region. 46 Figure 10 Data Element metamodel region. 51 Figure 11
21、 Consolidated metamodel 54 Figure B.1 Sample modelling diagram 65 Figure B.2 Notation for “Class” 65 Figure B.3 Notation for “Association” 66 Figure B.4 Notation for relationship between Classes 66 Figure B.5 Notation for relationship with Cardinality . 66 Figure B.6 Notation for “Association Class”
22、 66 Figure B.7 Notation for Supertype / Subtypes. 67 Figure B.8 Notation for Aggregation 67 Figure B.9 Notation for Composite Aggregation 68 Figure B.10 Notation for Class with Attributes. 68 Figure B.11 Notation for Composite attributes 68 Figure C.1 Basic Attributes of Data elements . 69 Copyright
23、 American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 11179-3:2003(E) vi ISO/IEC 2003 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the I
24、nternational Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particula
25、r fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have establish
26、ed a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are
27、circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be
28、held responsible for identifying any or all such patent rights. ISO/IEC 11179-3 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 32, Data management and interchange. This second edition cancels and replaces the first edition (ISO/IEC 11179-3:1994), whi
29、ch has been technically revised. ISO/IEC 11179 (first edition) consists of the following parts, under the general title Information technology Specification and standardization of data elements: Part 1: Framework for the specification and standardization of data elements Part 2: Classification for d
30、ata elements Part 3: Registry metamodel and basic attributes Part 4: Rules and guidelines for the formulation of data definitions Part 5: Naming and identification principles for data elements Part 6: Registration of data elements NOTE ISO/IEC 11179 is currently being revised under the general title
31、 Information technology Metadata registries (MDR). The part titles may also change in the process. Copyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 11179-3:2003(E) ISO/IEC
32、 2003 All rights reserved viiIntroduction Data processing and electronic data interchange rely heavily on accurate, reliable, controllable and verifiable data recorded in databases. A prerequisite for correct and proper use and interpretation of data is that both users and owners of data have a comm
33、on understanding of the meaning and representation of the data. To facilitate this common understanding, a number of characteristics, or attributes, of the data have to be defined. These characteristics of data are known as “metadata”, that is, “data that describes data”. This part of ISO/IEC 11179
34、provides for the attributes of data elements and associated metadata to be specified and registered as metadata items in a Metadata Registry. The structure of a Metadata Registry is specified in the form of a conceptual data model. The Metadata Registry is used to keep information about data element
35、s and associated concepts, such as “data element concepts”, “conceptual domains” and “value domains”. Generically, these are all referred to as “metadata items”. Such metadata are necessary to clearly describe, record, analyse, classify and administer data. When considering data and metadata, it is
36、important to distinguish between types of data/metadata, and instances of these types. Clause 4 of this part of ISO/IEC 11179 specifies the types of metadata objects that form the structure of a Metadata Registry. A Metadata Registry will be populated with instances of these metadata objects (metada
37、ta items), which in turn define types of data, e.g. in an application database. In other words, instances of metadata specify types of application level data. In turn, the application database will be populated by the real world data as instances of those defined data types. NOTE ISO/IEC 10027:1990
38、IRDS Framework explains the concepts of different levels of modelling. This part of ISO/IEC 11179 also describes the basic attributes of metadata items for purposes where a complete Metadata Registry is not appropriate. This part of ISO/IEC 11179 is of interest to information developers, information
39、 managers, data administrators, standards developers and others who are responsible for making data understandable and shareable. ISO/IEC 11179 has broad applicability across subject area domains and information technologies. Copyright American National Standards Institute Provided by IHS under lice
40、nse with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD ISO/IEC 111
41、79-3:2003(E) ISO/IEC 2003 All rights reserved 1Information technology Metadata registries (MDR) Part 3: Registry metamodel and basic attributes 1 Scope The primary purpose of ISO/IEC 11179-3 is to specify the structure of a Metadata Registry (see 1.1). ISO/IEC 11179-3 also specifies basic attributes
42、 which are required to describe metadata items, and which may be used in situations where a complete metadata registry is not appropriate (e.g. in the specification of other International Standards) (see 1.2). 1.3 identifies aspects not currently addressed. 1.4 provides examples of activities where
43、ISO/IEC 11179-3 may be applied. 1.1 Scope Structure of a Metadata Registry A comprehensive Metadata Registry management function requires a set of rules and procedures. These rules and procedures are set out in the following Clauses and Annexes and are complemented elsewhere in this document as foll
44、ows: a) the definitions of metadata objects are in Clause 3.3 of this part of ISO/IEC 11179; b) the structure of the registry in the form of a conceptual data model is in Clause 4 of this part of ISO/IEC 11179; Aspects of the registry are expanded on in other parts of ISO/IEC 11179, as follows: a) t
45、he overall framework for this family of International Standards is specified in ISO/IEC 11179-1; b) rules and guidelines for classifying metadata are in ISO/IEC 11179-2; c) rules and guidelines for the formulation of definitions are in ISO/IEC 11179-4; d) naming and identifying principles for metada
46、ta are in ISO/IEC 11179-5; e) rules and guidelines for registering metadata are in ISO/IEC 11179-6. While the model diagrams are presented in UML notation, this part of ISO/IEC 11179 does not assume nor endorse any specific system environment, database management system, database design paradigm, sy
47、stem development methodology, data definition language, command language, system interface, user interface, computing platform, or any technology required for implementation. This part of ISO/IEC 11179 does not directly apply to the actual use of data in communications and information processing sys
48、tems. Copyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 11179-3:2003(E) 2 ISO/IEC 2003 All rights reserved1.2 Scope Basic attributes of metadata items This part of ISO/IEC 11179 also specifies basic attributes which are required to describe metadata items, and which may be used in situations where a complete Metadata Registry is not appropriate (e.g. in the specification of other International Standards). These basic attributes are described in Cl
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