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1、BRITISH STANDARD BS ISO/IEC 15476-1:2002 Information technology CDIF semantic metamodel Part 1: Foundation ICS 35.080 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 15476-1:2002 This British Standard, having been prepared under
2、 the direction of the DISC Board, was published under the authority of the Standards Policy and Strategy Committee on 11 November 2002 BSI 11 November 2002 ISBN 0 580 37956 6 National foreword This British Standard reproduces verbatim ISO/IEC 15476-1:2002 and implements it as the UK national standar
3、d. The UK participation in its preparation was entrusted to Technical Committee IST/15, Software engineering, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement int
4、ernational publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to inc
5、lude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enqu
6、iries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO/IEC title page, pages ii to v, a bla
7、nk page, pages 1 to 11 and back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI R
8、eference number ISO/IEC 15476-1:2002(E) INTERNATIONAL STANDARD ISO/IEC 15476-1 First edition 2002-11-01 Information technology CDIF semantic metamodel Part 1: Foundation Technologies de linformation Mtamodle smantique CDIF Partie 1: Fondation BS ISO/IEC 154761:2002 Licensed Copy: sheffieldun sheffie
9、ldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO/IEC 154761:2002 ii Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS/OIE67451 C-1:002(2)E I SO/IE2002 C All irthgs serervde iii Contents 1 Scope 1 2 Conformance
10、 . 2 2.1 Input conformance 2 2.2 Output conformance. 3 2.3 Round-trip conformance 3 3 Normative references 3 4 Terms and definitions. 4 4.1 From other standards. 4 4.1.1 ISO/IEC 15474-1. 4 4.1.2 ISO/IEC 13238-1. 4 4.2 For this standard. 4 5 Symbols (and abbreviated terms) . 5 5.1 Naming, diagramming
11、 and definition conventions . 5 5.2 Abbreviations 5 6 Foundation subject area overview 5 7 Foundation subject area summary 6 7.1 AttributableMetaObject classification hierarchy . 6 7.2 MetaEntity summary. 6 7.3 MetaRelationship summary . 6 8 Foundation subject area specification 7 8.1 Introduction .
12、 7 8.2 Subject area definition 7 8.3 Meta-entity definitions 8 8.3.1 RootObject. 8 8.3.2 RootEntity 10 8.4 Meta-relationship definitions . 11 8.4.1 RootEntity.IsRelatedTo.RootEntity . 11 Table of Illustrations Figure 1 CDIF family of standards 1 Figure 2 Foundation subject area 5 BS ISO/IEC 154761:2
13、002 iii Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS/OIE67451 C-1:002(2)E vi ISO/IEC A 2002ll irthgs serervde Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) for
14、m 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 particular fields of technical activity. ISO and IEC t
15、echnical 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 established a joint technical committee, ISO/IEC JTC 1
16、. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies f
17、or voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO/IEC 15476 may be the subject of patent rights. ISO and IEC shall not be held responsible f
18、or identifying any or all such patent rights. ISO/IEC 15476-1 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 7, Software and system engineering. ISO/IEC 15476 consists of the following parts, under the general title Information technology CDIF semant
19、ic metamodel: Part 1: Foundation Part 2: Common Part 3: Data definition Part 4: Data models Part 5: Data flow models Part 6: State/event models BS ISO/IEC 154761:2002 iv Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS/OIE67451 C-1:002(2)E
20、 I SO/IE2002 C All irthgs serervde v Introduction This standard will assist the vendors and users of modelling tools and meta-data repositories in developing mechanisms for interchanging information. This standard specifies an element of a family of related standards. When used together, these stand
21、ards specify a mechanism for transferring information between tools. ISO/IEC 15474-1:2002, Information technology CDIF framework Part 1: Overview, and ISO/IEC 15474-2:2002, Information technology CDIF framework Part 2: Modelling and extensibility, should be read first when initially exploring CDIF.
22、The first explains the overall CDIF architecture and how the family of standards fits together. The second explains the scope, and modelling approach in CDIF. The CDIF meta- metamodel and extensibility mechanism are also defined in that document. This standard explains the Foundation subject area of
23、 the CDIF semantic metamodel, which is used to ensure that the information held by tools communicating using CDIF express the information they pass with an agreed meaning. This subject area contains the basic objects on which all others, including extensions, must be based. This standard has been de
24、veloped with the wide support and participation of vendors, users, academia and government involved in or familiar with the CASE industry, its products and the general requirements associated with interchanging information between these products. This document is organized into the following Clauses
25、: Clauses 1 to 5 are prescribed ISO/IEC Clauses Clause 6: Subject area overview This Clause gives an overview of the coverage of this subject area. Clause 7: Subject area summary This Clause gives an overview of the content of this subject area. Clause 8: Subject area definition This Clause gives th
26、e formal specification of all the objects defined in the subject area, and the formal reference to those used, but not defined in the subject area. BS ISO/IEC 154761:2002 v Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheff
27、ieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS/OIE67451 C-1:002(2)E I SO/IE2002 C All irthgs serervde 1 Information technology CDIF semantic metamodel Part 1: Foundation 1 Scope The CDIF family of standards is primarily designed to be
28、 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 language that is defined for the transfer format a
29、lso has applicability as a general language for import/export from repositories. The CDIF semantic metamodel defined for CASE also has applicability as the basis of standard definitions for use in repositories. The standards which form the complete family of CDIF standards are documented in ISO/IEC
30、15474-1:2002, Information technology CDIF framework Part 1: Overview. These standards cover the overall framework, the transfer format and the CDIF semantic metamodel. 15476 CDIF semantic metamodel 15474 CDIF framework Part 1 : Overview Part 2 : Modelling and extensibility Part 1 : Foundation Part 6
31、 : State/event models Part 3 : Data definitions Part 4 : Data models Part 5 : Data flow models 15475 CDIF transfer format Part 1 : General rules for syntaxes and encodings Part 2 : Syntax SYNTAX.1 Part 3 : Encoding ENCODING.1 Part n : . Part n : . Part 2 : Common Figure 1 CDIF family of standards Th
32、e 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. BS ISO/IEC 154761:2002 1 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled
33、 Copy, (c) BSI IS/OIE67451 C-1:002(2)E 2 ISO/IEC A 2002ll irthgs serervde This standard defines the Foundation subject area of the CDIF semantic metamodel. This subject area contains the basic objects on which all other objects, including those defined using extensibility, must be based. This docume
34、nt is intended to be used by anyone wishing to understand and/or use CDIF. This document provides a definition of a single subject area of the CDIF semantic metamodel. It is suitable for: Those evaluating CDIF, Those who wish to understand the principles and concepts of a CDIF transfer, and Those de
35、veloping importers and exporters. The document, ISO/IEC 15474-1:2002, Information technology CDIF framework Part 1: Overview, and the framework document ISO/IEC 15474-2:2002, Information technology CDIF framework Part 2: Modelling and extensibility, should be read first when initially exploring CDIF
36、 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
37、repositories; Data dictionaries; Multiple meta-layer modelling. 2 Conformance A product is fully standards conformant to a CDIF subject area standard if and only if it is input-conformant, output- conformant and round-trip conformant to each and every MetaEntity, MetaRelationship, MetaAttribute, and
38、 AttributableMetaObject which is defined and/or used in that standard, and it is also CDIF architecture conformant. A product may be partially input-conformant, and/or partially output-conformant, and/or partially round-trip conformant to a CDIF subject area standard. 2.1 Input conformance Input con
39、formance for a specific MetaEntity, MetaRelationship, MetaAttribute, or AttributableMetaObject (short: CollectableMetaObject) is determined by applying the following test: A set of meta-data containing all meanings and structures standardized by a CDIF subject area is imported by the product under t
40、est. Then the meta-data which has arrived in the product is examined. The following options exist for the relation between the input (CDIF) meta-data and the imported (product) meta-data: For a specific CollectableMetaObject: 1 The product is input conformant if each instance of the specific Collect
41、ableMetaObject has arrived in the product without change of meaning or structure. If the CollectableMetaObject is a meta-entity or meta-relationship, its structural relationships to other CollectableMetaObjects have been preserved. If the CollectableMetaObject is a meta-attribute, the value of the m
42、eta-attribute has been preserved. 2 The product is input morphing conformant if each instance of the specific CollectableMetaObject has arrived in the product, but with some changes in meaning or structure. If the CollectableMetaObject is a meta-attribute, the value(s) for some instances of the meta
43、-attribute have changed. 3 The product is not input conformant for that CollectableMetaObject if neither of the previous tests is satisfied. BS ISO/IEC 154761:2002 2 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 23 03:55:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS/OIE67451 C-1:002(2)E I S
44、O/IE2002 C All irthgs serervde 3 2.2 Output conformance Output conformance for a specific CollectableMetaObject is determined by applying the following test: For the product being tested, a set of meta-data that includes all possible meanings and structures representable in that product is exported.
45、 Then the meta-data that has been exported is examined. The following options exist for the relation between the products meta-data and the exported (CDIF) meta-data: For a specific CollectableMetaObject: 1 The product is output conformant if all of the meaning and structure for the specific Collect
46、ableMetaObject has been represented as meta-data in the product and has been exported as one or more instances of that CollectableMetaObject. If the CollectableMetaObject is a meta-attribute, the correct value of the meta-attribute has been exported. 2 The product is output morphing conformant if ea
47、ch instance of meta-data in the product that has the same meaning and structure as the CollectableMetaObject has been exported, but some instances have been exported as a different CollectableMetaObject or some of the meaning and structure has been changed. 3 If the product does not represent the me
48、aning and structure associated with the CollectableMetaObject, output conformance for that CollectableMetaObject is not applicable to the product. 4 In all other cases, the product is not output conformant for that CollectableMetaObject. 2.3 Round-trip conformance Round-trip conformance for a specif
49、ic CollectableMetaObject is determined by applying the following test: A set of meta-data containing all meanings and structures standardized by a CDIF subject area is imported by the product under test. Then the meta-data is exported again. The following options exist for the relation between the input meta-data and the output meta-data: For a specific CollectableMetaObject: 1 The product is ro