1、_ STDaITU-T RECMN Y=bLO-ENGL 3998 4862593 0b52b53 b8T INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Y.110 (06198) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE General Global Information Infrastructure principles and framework architecture ITU-T Recommenda
2、tion Y. I 1 O (Previously CCITT Recommendation) STD.ITU-T RECMN Y*JLO-ENGL 1778 4862573 Ob52652 516 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE General Y.1Oo-Y.l99* * Services, applications and middleware Y .200-Y .299 Network aspects Interfaces and protocols Numbering, addressi
3、ng and naming Operation, administration and maintainance Security Y.300-Y.399 Y .40O-Y .499 Y .50O-Y.599 Y .60O-Y .699 Y. 700-Y. 799 For further details, please refer to ITU-T List of Recommendations. ITU-T RECOMMENDATION Y.110 GLOBAL INFORMATION INFRASTRUCTURE PRINCIPLES AND FRAMEWORK ARCHITECTURE
4、Summary This Recommendation presents the basic concepts of the Global Information Infrastructure (GII). It describes a number of models which can be used to represent the functional entities involved in the provision of the GII, and their interrelationships, from a variety of perspectives or view po
5、ints. Source ITU-T Recommendation Y.110 was prepared by ITU-T Study Group 13 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 12th of June 1998. Keywords architecture, functions, framework, GII, Global Information Infrastructure, models, standardization standards. STD-IT
6、U-T RECYN Y-110-ENGL 1998 4862593 Ob52654 399 FOREWORD IT (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The IT Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The IT-T is responsible for studying
7、 technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups
8、 which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fali within IT-Ts purview, the necessary standards are prepared on
9、 a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. I INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the prac
10、tice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation de
11、velopment process. As of the date of approval of this Recommendation, the ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are
12、 therefore strongly urged to consult the TSB patent database. I O ITU 1998 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. 11 Recomm
13、endation Y .110 (06/98) _ CONTENTS 1 2 3 4 5 5.1 5.2 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 Introduction Scope Terms and references Objective and principles ofthe GI1 User perspective of the GI1 . Features ofthe users viewpoint ofthe GI1 . Conceptual overview of the GI1 and its users . Simple enterprise mo
14、del . Purpose of the enterprise model Semi-formal definition of enterprise modelling terms Concepts in the simple enterprise model 6.2.1 Roles and players 6.2.2 Structural roles 6.2.3 Infiastructural roles within the GI1 Features of relationships between roles General features of relationships betwe
15、en roles Example configuration of structural roles . Purpose of the enterprise model and its terms and definitions . 6.1.1 6.1.2 6.3.1 6.3.2 6.3.3 Example configuration of infrastructural roles . GI1 structural model . Purpose of the structural model and its terms and definitions 7.1,l Purpose of th
16、e structural model . 7.1.2 Semi-formal definition of terms in the structural model . Structure of services and applications Types of application components of the GI1 . Types of services ofthe GI1 Infiastructural service components . 7.3.1 Baseware service components . Domains and service provisioni
17、ng platforms . 7.4.1 Domains and contracts 7.4.2 Service provisioning platforms . 7.2.1 7.2.2 7.2.3 Application component invoking and handling service 7.3.2 Middleware service components . Page 1 1 1 1 2 3 5 6 6 6 7 8 8 8 9 11 11 12 12 13 13 13 14 15 17 17 18 18 18 20 21 21 21 . Recommendation Y.11
18、0 (06/98) 111 8 8.1 8.2 8.3 8.4 8.5 8.6 9 . 9 .I 9.2 9.3 STD-ITU-T RECMN Ym110-EYGL 1998 LJBb259L Ob52b5b LbL GI1 functional model Purpose of the hctional model and its terms and definitions 8.1.1 8.1.2 Semi-formal definition of terms in the functional model Purpose of the functional model Impact of
19、 distributed applications on the functional model . Domains and service provisioning platforms . Functions and logical interfaces in the GI1 . 8.4,l Types of functions and logical interfaces 8.4.2 Functions and roles Network functions and the network operators domain Transparency of middleware and a
20、pplication protocols . GI1 implementational model . Purpose of the implementational model and its terms and definitions . Purpose of the implementational model Semi-formal definition of implementational modelling terms Segments in the implementational model . Segments in telecommunications networks
21、Structuring of implementation possibilities in the example 9.3.2 Information appliance configurations . 9.3.3 Access segment configurations . 9.1.1 9.1.2 9.3.1 9.3.4 Variety of telecommunications network segments and their interconnection Appendix I . The relationship of socio-economic issues to sta
22、ndards The configuration of information society and its role I . 1 I . 2 ITU involvement in the GI1 Page 21 21 21 22 23 23 24 24 25 26 28 29 29 29 30 31 31 32 34 35 36 38 38 39 iv Recommendation Y.110 (06/98) Recommendation Y.110 GLOBAL, INFORMATION INFRASTRUCTURE PRINCIPLES AND FRAMEWORK ARCHITECTU
23、RE (Geneva, 1998) 1 Introduction The Global Information Infrastructure (GII) enables people to securely use a set of communication services supporting an open multitude of applications and embracing all modes of information, any time, anywhere, and at an acceptable cost and quality. The GI1 also sup
24、ports the goal of an international consensus on common principles governing the need of access to networks and applications and their operability based on a seamless federation of interconnected, interoperable communication networks, information processing equipment, databases and terminals. 2 Scope
25、 This Recommendation is designed to be a high-level systems engineering document presenting concepts needed to support the realization of the GII. However, it is not expected to present all inclusive detailed specifications for the GII. Rather, this Recommendation is intended to be used as a backgro
26、und document for use by ITU Study Groups and other groups outside the ITU to use as input for their development of detailed standards for critical functionalities required to support the enhancement of the GII. In support of identieing the functionalities required to support the enhancement of the G
27、II, GI1 functional entities and their relationships are described. This functionality-based view of the GI1 will also need to be balanced with physical aspects (e.g. the results of the use of the scenario-based approach discussed in Recommendation Y. 120), resulting in the development of GI1 functio
28、nal models consisting of functional entities and reference points. It is hoped that these GI1 models will effectively represent a functional perspective from which numerous physical views can be developed. 3 Terms and references For further study. 4 The objective of the GI1 is to ensure that each ci
29、tizen may eventually gain access to the information society. This can be enabled by the interoperability of networks, information processing systems and applications. These objectives will be served by the following core principles of the GI1 which will: Objective and principles of the GI1 promote f
30、air competition; encourage private investment; define an adaptable regulatory framework; provide open access to networks, Recommendation Y.110 (06/98) 1 STD.ITU-T RECMN Y-iLO-ENGL 3%98 4862593 Ob52658 “34 while: ensuring universal provision of and access to services; promoting equality of opportunit
31、y to the citizen; promoting diversity of content, including cultural and linguistic diversity; recognizing the necessity of worldwide cooperation with particular attention to less developed countries. These principles will apply to the GI1 by means of: promotion of interconnectivity and interoperabi
32、lity ; developing global markets for networks, services and applications; ensuring privacy and data security; cooperating in R monitoring of the social and societal implications of the information society. protecting intellectual property rights; 5 In accordance with the general aim of this Recommen
33、dation to give information on where more detailed standardization is appropriate, this clause identifies some of the more important aspects of the GI1 as seen from the users of the GI1 - in particular, the services offered and applications supplied by the GII. The motivation in the clause is as foll
34、ows: User perspective of the GI1 Standardization of technical interfaces is only appropriate where the technical interface can As several historically separate industries converge, organizational boundaries will evolve be part of an overall interface between two distinct organizations. and so the pl
35、aces where standardization is required will also evolve. The background is one of convergence between a number of industries - particularly the telecommunications industry, the computing/information technology industry, and the entertainmentlconsumer electronics industry. The GI1 is at the centre of
36、 the convergence and is fully expected to expand over time as illustrated in Figure 5- 1. 2 Recommendation Y.110 (06/98) n TODAY End users perspective NEAR FUTURE Computer/ Informatio GI1 Entertainment T1311570-97 Entertainment Telecommunications industrys perspective Figure 5-lN.l10 - GI1 is at the
37、 centre of the threefold industrial convergence Regulators perspective GI1 5.1 There are many interested groups with a view on the GI1 as illustrated in Figure 5-2. The viewpoint of groups will be different and will tend to emphasize aspects which are important to that group. By examining the GI1 fr
38、om these multiple perspectives, a progressively more complete understanding can be obtained with the added consideration of each view. Features of the users viewpoint of the GI1 Information technology industrys perspective Standards bodies perspective Broadcast entertainment industrys perspective 1
39、I I I Figure 5-2N.110 - Examples of viewpoints on the GI1 3 Recommendation Y.110 (06/98) STD-ITU-T RECMN Y*LLO-ENGL 1998 4862593 0652660 692 The simple enterprise model can be used to identifj some of the features required of the GI1 by users, and also the way in which they will interact with the fe
40、atures. The following list illustrates some of the manners by which GI1 users might need to interact with the GII: GI1 users may need to be able to “see“ (Le. be aware of) only the GI1 users with whom they are redly interested in forming a relationship. In this context, applications would be “seen“
41、as components of the sought relationships, without concern for the services supporting these relationships or to other involved GI1 users (as illustrated in Figure 5-3); GI1 users may need to be able to see“ (Le. invoke and use) applications without concern for the services supporting the applicatio
42、ns or to other GI1 users involved in the applications and in the provision of involved services (also illustrated by Figure 5-3); GI1 users may need to be able to “see“ (i.e. invoke and use) applications, while at the same time being concerned with being aware of or choosing some of the: - - service
43、s that may be supporting the applications; and/or some of the GI1 users involved in the applications and/or involved in the provision of involved services (as illustrated in Figure 5-4). communication networks services Ti31 1590-97 Figure 5-3N.110 - A user view which is transparent to the services s
44、upplied by the infrastructural roles of the GI1 4 Recommendation Y.110 (06/98) STD-ITU-T RECMN Y-110-ENGL 1998 48b259L Ob52bbL 529 R communication networks and services n,ahinrlra TI 31 1600-97 1 Figure 5-4N.110 - A user view which includes the services supplied by the infrastructural roles of the G
45、I1 The difference is the way in which the infrastructure is visible to the user. In the first case, the service provider chooses to include the provision of infrastructural services as part of its service (800 service is a simple example), while in the second case, the end user takes responsibility
46、for the provision of at least some of the infrastructural services. 5.2 Figure 5-5 gives a conceptual overview of the GI1 and its users. It identifies four basic elements: Conceptual overview of the GI1 and its users the people that create, produce, use and operate information; the information appli
47、ances that are used to store, process, and allow access to information; the communications infrastructure which transports the information between geographically the information which includes application software such as home shopping systems, games, O separated information appliances; etc., as wel
48、l as video, audio, textual, and graphical information which may be converted from an existing medium into electronic form for use by GI1 users. O These basic elements interact as illustrated in Figure 5-5. Recommendation Y.110 (06/98) 5 STD-ITU-T RECMN Y=LLO-ENGL II778 m 4862573 0652bb2 4b5 m People
49、 People I, L I , 1-1 support platform support Information appliance Communications Communications network network - - Communications infrastructure 1 Il I Il Information support platform Communications Information appliance T1311610-97 Figure 5-5N.110 - Conceptual overview of the GI1 and its users 6 Simple enterprise model 6.1 Purpose of the enterprise model and its terms and definitions 6.1.1 The primary purpose of the enterprise model is to identifj interfaces which are likely to be of general commercial importan
