BS ISO IEC 14769-2001 Information technology - Open distributed processing - Type repository function《信息技术 开放分布处理 型式存储功能》.pdf

1、BRITISH STANDARD BS ISO/IEC 14769:2001 Information technology Open Distributed processing Type Repository Function ICS 35.100.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO/IEC 14769:2001 This British Standard, having been prepared under the direction of the DISC boa

2、rd, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 08-2001 ISBN 0 580 37038 0 National foreword This British Standard reproduces verbatim ISO/IEC 14769:2001 and implements it as the UK national standard. The UK participation in its preparatio

3、n was entrusted to Technical Committee IST/15, Software and Systems 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 international or European public

4、ations referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provi

5、sions of a contract. Users of British Standards are responsible for their 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 enquiries

6、 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 blank pa

7、ge, pages 1 to 28, an inside back cover and a back cover The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsReference number ISO/IEC 14769:2001(E) INTERNATIONAL STANDARD ISO/IEC 14769 First edition

8、2001-05-15 Information technology Open Distributed Processing Type Repository Function Technologies de linformation Traitement rparti ouvert Fonction de rpertoire de typesISO/IEC 14769:2001(E) iiISO/IEC 14769:2001(E)iii CONTENTS Page 1 Scope 1 2 Normative References 1 2.1 Identical Recommendation |

9、International Standard. 1 2.2Additional References 22.3 Specifications of the Object Management Group 2 3 Definitions 2 3.1 Terms defined in other International Standards. 2 3.2 Terms defined in this Recommendation | International Standard 4 3.3 Terms defined in the OMG Meta-Object Facility . 5 4 Ab

10、breviations 5 5 Overview and Motivation . 5 5.1 Type Repository 5 5.2 Meta-Object Facility 6 6 Enterprise Specification 6 6.1 Objective . 6 6.2 Type Repository Community 6 6.2.1 Roles 6 6.2.2 Behaviour 8 6.2.3 Policies 10 6.3 Federation 10 6.4 Correspondences between enterprise specification concept

11、s and the MOF 11 7 Information Specification . 11 7.1 Correspondences between information viewpoint concepts and the MOF 11 8 Computational Specification. 12 8.1 Correspondences between computational viewpoint concepts and the MOF 12 9 Conformance Statements and Reference Points . 12 Annex A ODP Typ

12、e Framework. 14 A.1 ODP-RM Type System 14 A.2 Type System for ODP Trading Function. 16 A.3 Interface Reference and Binding Type System . 17 Annex B Suggested type languages 23 Annex C Summary of Referenced Material in OMG Meta-Object Facility . 24 C.1 Problems arising through reference to the OMG Me

13、ta-Object Facility specification . 24 C.2 Relationship with the MOF specification 24 ISO/IEC 14769:2001(E) iv Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National

14、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 technical committees collaborate in fields of mutual interest. Oth

15、er international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. In the field of information technology, ISO and IEC have established a

16、 joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the

17、 possibility that some of the elements of this International Standard may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. International Standard ISO/IEC 14769 was prepared by Joint Technical Committee ISO/IEC JTC 1, Informatio

18、n technology, Subcommittee SC 7, Software engineering, in collaboration with ITU-T. The identical text is published as ITU-T Recommendation X.960. Annex A forms a normative part of this International Standard. Annexes B and C are for information only. Introduction This Recommendation | International

19、 Standard prescribes the ODP Type Repository Function (subclause 14.4 of ITU-T Rec. X.903 | ISO/IEC 10746-3) to support the storage, retrieval and management of type descriptions within an identified framework for type descriptions. ITU-T Rec. X.902 | ISO/IEC 10746-2 provides a general definition of

20、 type in subclause 9.7; this definition allows the description of types using any predicate. ITU-T Rec. X.903 | ISO/IEC 10746-3 introduces a number of target concepts specific to particular viewpoints. This Recommendation | International Standard supports the establishment of type definitions based

21、on the concepts defined in the ODP family of Recommendations | International Standards. This Recommendation | International Standard enables type descriptions for use by the ODP functions outlined in ISO/ IEC 10746-3. Type descriptions can occur in specifications from any viewpoint, e.g. enterprise

22、specification can introduce enterprise types. This Recommendation | International Standard specifically addresses the needs of the ODP computational and engineering viewpoint types, but is capable of supporting type descriptions coming from other viewpoint languages. This Recommendation | Internatio

23、nal Standard permits the use of multiple type description languages. There are a number of widely used and standardized languages for type description, for example CORBA IDL, ASN.1, LOTOS, GDMO and SDL, which fulfil some of the requirements of type descriptions in ODP-RM. This Recommendation | Inter

24、national Standard does not define a single all-encompassing type language. Users can use either existing languages or languages defined within other ODP Recommendations | International Standards. Annex B is an informative annex outlining languages that support large sets of target concepts. This Rec

25、ommendation | International Standard supports type systems with a type Type (e.g. pass type as parameters as in the ODP computational language). ITU-T Rec. X.903 | ISO/IEC 10746-3 defines a subtype relationship between computational operational interface signature types. This Recommendation | Intern

26、ational Standards supports a wider variety of relationships between types, which might include the analysis of behaviour and environment contracts, but the definition of such relationships is not within the scope of this Recommendation | International Standard. Relationships between types can either

27、 be asserted or deduced. It is recognized that not all relationships (including equivalence) can always be automatically deduced. However, automatic deduction should be encouraged whenever applicable. The type repository function supports the allocation of identifiers to types in order to allow the

28、transmission of these “shorthand“ representations across domains (i.e. between objects using different type repositories). The type repository function addresses interworking and federation to support the distribution of the type repository function by clarifying the notion of type domains. This fun

29、ction supports both federation of type domains handling equivalent type systems and federation of type domains handling different type systems. v ISO/IEC 14769:2001(E) ISO/IEC 14769 : 2001 (E) ITU-T Rec. X.960 (1999 E) 1 INTERNATIONAL STANDARD ISO/IEC 14769 : 1999 (E) ITU-T Rec. X.960 (1999 E) ITU-T

30、 RECOMMENDATION INFORMATION TECHNOLOGY OPEN DISTRIBUTED PROCESSING TYPE REPOSITORY FUNCTION 1 Scope The concept of “type“ is fundamental to ODP systems; the interaction model of ODP-RM involves strongly-typed interactions. This Recommendation | International Standard: defines a framework for describ

31、ing types of interest in ODP systems by determining what entities need to be typed and what needs to be said about the identified types. The primary focus of this work is the computational interface type system; identifies and characterizes type languages sufficient to describe the types identified

32、above in an informative annex; provides enterprise, information, and computational specifications of a generic type repository function within the type description framework which can be specialized to select a specific type system or type notation. The type repository function provides: storage and

33、 retrieval of type descriptions; management of type descriptions; management of the relationship between types including matching of types; naming of types (in a manner consistent with ODP Naming Framework); interworking and federation of different type repositories. This Recommendation | Internatio

34、nal Standard provides a standard method of accessing type descriptions used within open distributed processing systems, where the type descriptions can be in various concrete syntaxes and type languages used in these open distributed processing systems. This Recommendation | International Standard a

35、lso facilitates the dynamic matching of types for interactions, binding and trading purposes. 2 Normative References The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation | International Standa

36、rd. At the time of publication, the editions indicated were valid. All Recommendations and International Standards are subject to revision, and parties to agreements based on this Recommendation | International Standard are encouraged to investigate the possibility of applying the most recent editio

37、n of the Recommendations and Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of ITU maintains a list of the currently valid ITU-T Recommendations. 2.1 Identical Recommendations | International

38、Standards ITU-T Recommendations X.680-series (1997) | ISO/IEC 8824 (all parts):1998, Information technology Abstract Syntax Notation One (ASN.1). ITU-T Recommendation X.725 (1995) | ISO/IEC 10165-7:1996, Information technology Open Systems Interconnection Structure of management information: General

39、 relationship model. ISO/IEC 14769 : 2001 (E) 2 ITU-T Rec. X.960 (1999 E) ITU-T Recommendation X.902 (1995) | ISO/IEC 10746-2:1996, Information technology Open Distributed Processing Reference Model: Foundations. ITU-T Recommendation X.903 (1995) | ISO/IEC 10746-3:1996, Information technology Open D

40、istributed Processing Reference Model: Architecture. ITU-T Recommendation X.910 (1998) | ISO/IEC 14771:1999, Information technology Open Distributed Processing Naming framework. ITU-T Recommendation X.920 (1997) | ISO/IEC 14750:1999, Information technology Open Distributed Processing Interface defin

41、ition language. ITU-T Recommendation X.930 (1998) | ISO/IEC 14753:1999, Information technology Open Distributed Processing Interface references and binding. ITU-T Recommendation X.950 (1997) | ISO/IEC 13235-1:1998, Information technology Open Distributed Processing Trading function: Specification. 2

42、.2 Additional References ISO/IEC 10027:1990, Information technology Information Resource Dictionary System (IRDS) framework. ISO/IEC 13719 (all parts):1998, Information technology Portable Common Tool Environment (PCTE). ISO/IEC 15474 (all parts):. 1) , Information technology CDIF Framework. 2.3 Spe

43、cifications of the Object Management Group This Recommendation | International Standard makes references to the following specifications: Object Management Group, ad/97-08-14 and ad/97-08-15, Meta-Object Facility, 1997. Object Management Group, ad/97-08-02 through ad/98-08-09, Unified Modelling Lang

44、uage, 1997. Annex C identifies the clauses of this Recommendation | International Standard that reference text in the Meta-Object Facility. 3 Definitions For the purposes of this Recommendation | International Standard, the following definitions apply, except for where the text is described as being

45、 common with the Meta-Object Facility. 3.1 Terms defined in other International Standards This Recommendation | International Standard makes use of the following terms defined in ITU-T Rec. X.902 | ISO/IEC 10746-2 Open Distributed Processing Reference Model: Foundations): action; behaviour; binding;

46、 client object; consumer object; creation (of an ); data type; deletion (of an ); domain; environment contract type; identifier; information; instance (of a type); _ _ _ _ 1)To be published. ISO/IEC 14769 : 2001 (E) ITU-T Rec. X.960 (1999 E) 3 instantiation (of an ); interface; interface signature;

47、name; obligation; ODP standard; ODP system; object; policy; role; subtype; supertype; state (of an object); template; trading; type; viewpoint. This Recommendation | International Standard makes use of the following terms defined in ITU-T Rec. X.903 | ISO/IEC 10746-3 (Open Distributed Processing Ref

48、erence Model: Architecture): announcement signature; binding object; community; compound binding; computational interface; computational interface signature; computational interface type; computational object signature; computational specification; computational viewpoint; NOTE Throughout this Recom

49、mendation | International Standard, the qualifier “computational“ is frequently omitted. dynamic schema; engineering interface reference; enterprise specification; federation; flow signature type; flow type; information specification; interrogation signature; invariant schema; invocation; operation; operation signature t