1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU TA92 (06/98) SERIES T: TERMINALS FOR TELEMATIC SERVICES Cooperative Document Handling - Complex services: Joint synchronous editing and joint document presentationhiewing ITU-T Recommendation T.192 (Previousl
2、y CCITT Recommendation) ITU-T T-SERIES RECOMMENDATIONS TERMINALS FOR TELEMATIC SERVICES For further details, please refer to ITU-T List of Recommendations STD-ITU-T RECMN T-192-ENGL 1998 48b2531 Ob52548 104 ITU-T RECOMMENDATION T.192 COOPERATIVE DOCUMENT HANDLING - COMPLEX SERVICES: JOINT SYNCHRONOU
3、S EDITING AND JOINT DOCUMENT PRESENTATIONNIEWING Summary This Recommendation specifies document communication services to be provided on top of existing base standards or profiles, giving constraints on them and rules on how to use and combine them. Recommendation T. 190 specifies basic services, su
4、ch as storing, retrieval, manipulation, pointing or token-interchange. Some of these basic services can be used as stand-alone services, but all of them are candidates to build more complex services, such as joint synchronous editing and joint document presentationhiewing. This Recommendation specif
5、ies complex document communication services that are built on top of the basic ones. Source ITU-T Recommendation T.192 was prepared by ITU-T Study Group 8 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 18th of June 1998. Recommendation T.192 (06198) 1 FOREWORD ITU (Int
6、ernational Telecommunication Union) is the United Nations Specialized Agency in the field of telecommuni- cations. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the IT. The IT-T is responsible for studying technical, operating and tariff questions and issuing Recom
7、mendations 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 which, in their tum, produce Recommendations on these topic
8、s. The approval of Recommendations by the Members of the IT-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recomme
9、ndation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the u
10、se 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 IT members or others outside of the Recommendation development process. As of the date of approval of this Recommenda
11、tion, 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 therefore strongly urged to consult the TSB patent database. O
12、ITU 1998 I I 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 Recommendation T.192 (06198) 1 2 3 4 5 6 7 8 CONTENTS Page Scope 1 R
13、eferences 1 2.1 ITU-T Recommendations 1 2.2 Additional references 2 Definitions 2 Abbreviations . Introduction to document communication complex services . Classification of complex services Joint Synchronous Editing (SE) 5.2.1 Description 5.2.2 Service construction rules . Joint document Presentati
14、onNiewing (PV) 5.3.1 Joint document PresentationNiewing with 1 presenter (PVi) . 5.1 5.2 5.3 5.3.1.1 Description 5.3.1.2 Service construction rules . 5.3.2.1 Description 5.3.2.2 Service construction rules . 5.3.2 Joint document PresentationNiewing with n presenters (PVn) Document aspects concerning
15、the SE and PV complex services . 6.1 Non-ODA documents . Communication aspects concerning the SE and PV complex services Combined DTAM-DM and DTAM-TK (DTAM-DWTK) 7.1.1 Description 7.1.2 Services, protocols and profiles . 7.1.3 Use for document communication . Multipoint Communication Service (MCS) 7
16、.2.1 Description 7.2.2 Services, protocols and profiles . 7.2.3 Use for document communication . Generic Conference Control (GCC) 7.3.1 Description Services, protocols and profiles . Use for document communication . 7.1 7.2 7.3 7.3.2 7.3.3 Components and design rules for the SE and PV complex servic
17、es . Definition of document related service attributes . 8.1.1 The service attribute “document location“ 8.1.2 The service attribute “document copies“ . 8.1.3 The service attribute “document access rights“ . 8.1.4 The service attribute “store access rights“ . 8.1.5 The service attribute “document fo
18、rmat“ . 8.1.6 The service attribute “functionality level“ . 8.1.7 The service attribute “document access order“ 8.1 2 3 4 5 5 6 7 10 10 10 11 11 11 11 11 12 12 12 12 12 12 12 13 13 13 13 13 14 14 14 15 16 16 16 16 16 16 . Recommendation T.192 (06/98) 111 P 8.2 Definition of communication related ser
19、vice attributes 8.2.1 The service attribute “number of communicating entities“ . 8.2.2 The service attribute “communication type“ . 8.2.3 The service attribute “communication module“ 8.2.4 The service amibute “association“ 8.2.5 The service attribute “synchronization“ 8.2.6 The service attribute “co
20、nference type“ . Definition of implementation related service attributes 8.3.1 The service attribute “basic services“ 8.3.2 The service attribute “static information“ Rules for the formal definition of complex services . 8.4.1 Rules and notation for the assignment of values to the document related s
21、ervice attributes 8.4.2 Rules and notation for the assignment of values to the communication related service atibutes 8.4.3 Rules and notation for the assignment of values to the implementation related service attributes 8.4.4 Rules and notation for the selection of the communication modules 8.4.5 A
22、pplication rules . 8.3 8.4 9 Formal definition of the SE complex service . 9.1 Document related service attributes 9.2 Communication related service attributes . 9.3 Implementation related service attributes 9.4 Selection of communication modules . 9.5 Application rules . Application rules when usin
23、g DTAM-DM/TK . 9.5.1.1 Case 1 : “association“ = one-to-one and “conference type“ = fixed 9.5.1.2 Case 2: “association“ = one-to-several and “conference type“ = fixe a. 9.5.1.3 Case 3: “association“ = one-to-severall and “conference type = flexible . 9.5.1 1 O Formal definition of the PV1 complex ser
24、vice . 1 O . 1 10.2 10.3 10.4 Document related service attributes Communication related service attributes . Implementation related service attributes Selection of communication modules . 10.5 Application rules . 1 O S.1 Application rules when using DTAM-DM/TK . 10.5.1.1 Case 1 : “association* = one
25、-to-one and “conference type“ = fixed 10.5.1.2 Case 2: “association“ = one-to-several and “conference type“ = fixe a. 10.5.1.3 Case 3: “association“ = one-to-several and “conference type“ = flexible . 11 Formal definition of the PVn complex service . 11.1 Document related service attributes 11.2 Com
26、munication related service attributes . 1 1.3 Implementation related service attributes 11.4 Selection of communication modules . age 17 17 18 18 18 18 19 19 19 20 20 20 21 22 22 23 24 24 25 25 25 26 26 26 28 31 33 33 33 34 34 35 35 35 36 38 40 40 40 40 41 iv Recommendation T.192 (06/98) Page 11.5 A
27、pplication rules . 41 1 1.5.1 Application rules when using DTAM-DWK . 42 42 43 45 48 49 11 S.l. 1 11.5.1.2 11.5.1.3 Case 1: “association“ = one-to-one and “conference type“ = fixe d. Case 2: “association“ = one-to-several and “conference type“ = fixed: . Case 3: “association“ = one-to-several and “c
28、onference type“ = flexible . Annex A - ASN1 specification Appendix I - Implementation guidelines . I . 1 General implementation guidelines . 1.1.1 Quality of Service (QOS) 1.1.2 Security 1.1.3 Handling documents in non-ODA formats 1.1.4 Complex services token distribution . 1.1.5 Steps coordination
29、in MCS 1.1.6 1.1.7 Leaving the session . I . 1.8 Alternative implementation to the CSS . Handling of error situations . Specific implementation hints for the SE complex service . 1.2 49 49 49 49 50 50 50 51 51 51 1.3 1.4 Specific implementation hints for the PV1 complex service Specific implementati
30、on hints for the PVn complex service 51 52 52 11.1 Document architectures . 52 11.1.1 Generic Abstract Interface . 52 11.2 Communication architectures 52 52 Appendix II - Bibliography . 11.2.1 Multipoint Communication Service (MCS) and Generic Conference Control (GCC) 11.2.3 Multipoint DTAM-DM (M-DT
31、AM-DM) and Multipoint Remote Procedure Call (M-WC) 53 11.2.4 Profiles 53 11.2.2 Cooperative Document Handling (CDH) 53 Recommendation T.192 (06/98) V - Recommendation T.192 COOPERATIVE DOCUMENT HANDLING - COMPLEX SERVICES: JOINT SYNCHRONOUS EDITING AND JOINT DOCUMENT PRESENTATIONNIEWING (Geneva, 199
32、8) 1 Scope The Open Document Architecture (ODA) base Recommendations I Intemational Standards and associated profiles speciQ the means to represent and interchange complex documents. I Communication base Recommendations I International Standards and associated profiles, specifying interchange, remot
33、e manipulation and management of documents at the application layer of the Open Systems interconnection (OSI) Reference Model, have also been specified, as Document Transfer And Manipulation (DTAM) and Document Filing and Retrieval (DFR). Standards concerning multipoint communication and multimedia
34、conferencing applications (see T. 120 series of Recommendations) are being specified to support the needs of a rapidly growing telecommunication market. Standardizing document communication services will help implementors and service providers to extend the use and acceptance of these services in Eu
35、rope. Furthermore, the standardization of document communication service profiles will facilitate interworking. This Recommendation specifies document communication services to be provided on top of existing base standards or profiles, giving constraints on them and rules on how to use and combine t
36、hem. Recommendation T. 190 specifies basic services, such as stonng, retrieval, manipulation, pointing or token-interchange. Some of these basic services can be used as stand-alone services, but all of them are candidates to build more complex services, such as joint synchronous editing and joint do
37、cument presentationhiewing. This Recommendation specifies complex document communication services that are built on top of the basic ones. 2 References The following ITU-T Recommendations, and other references contain provisions which, through reference in this text, constitute provisions of this Re
38、commendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other
39、 references listed below. A list of the currently valid ITU-T Recommendations is regularly published. 2.1 ITU-T Recommendations - ITU-T Recommendation T. 122 (1998), Multpoint communication service - Service definition. - ITU-T Recommendation T. 124 (1998), Generic Conference Control. - ITU-T Recomm
40、endation T. 125 ( 1994), Multipoint communication service protocol specijcation. - ITU-T Recommendation T. 190 (1995), Cooperative Document Handling (CDH) - Framework and basic services. Recommendation T.192 (06198) 1 - STD-ITU-T RECMN T-592-ENGL 5998 U862591 0b5255U U08 m 2.2 Additional references
41、- ISOAEC 9594:1995, The Directov. - ISOIEC 1003 1-2:1991, information technology - Text and oflce systems - Distributed-ofice-applications model - Part 2: Distinguished-object-reference and associated procedures. ETS 300 498-1 (1996), Open Document Architecture (ODA) - ODA communication services - P
42、art I: Basic services. - 3 Definitions For the purposes of this Recommendation, all the definitions in Recommendation T.190 apply. In addition, this Recommendation defines the following terms. 3.1 central service server: A server that controls the complex service token and centralizes the distributi
43、on of the document updates for a specific complex service. It is used to simpliQ the communication mechanism, since only one communication link between a user and the server is needed. 3.2 termination of an application implementing a complex service. complex service session: The whole of the process
44、es and events in the time interval between initialization and 3.3 initiator: The user that initiates a complex service session. 3.4 session. master copy: The copy of a document that is used as a reference. It is updated at the end of a complex service 3.5 moderator: The user that is in charge of dis
45、tributing the complex service token. It may be the initiator, a specific user, or the holder of the complex service token (in this case, the moderator role is changing during the complex service session). 3.6 presenter: A user who presents the content and the structure of a document to other users (
46、the viewers). 3.7 joint document PresentationNiewing (PV) session: A complex service session with the PV complex service. 3.8 PV token: A token used in the PV session to indicate which user is in turn to access and present a document. 3.9 joint Synchronous Editing (SE) session: A complex service ses
47、sion with the SE complex service. 3.10 document. SE token: A token used in the SE session to indicate which user is in turn to access and manipulate a 3.11 another user (the presenter). viewer: A user who follows the presentation of the content and the structure of a document provided by 4 Abbreviat
48、ions For the purposes of this Recommendation, all the abbreviations in Recommendation T.190 apply. In addition, this Recommendation uses the following abbreviations: AEE Associations Establishment End step AEI Associations Establishment Initiation step AP AR Associations Release step CDH Cooperative
49、 Document Handling cs Complex Service Asynchronous document Production complex service 2 Recommendation T.192 (06/98) css DTAM-DM/TK DTAM-DM-SYM EWOS FDS GC GCC GE GI GT IDS ISSS MC J I MCR I MCS MCU MDE MDR M-DTAM-DM M-RPC MUA MUD O PV PV 1 PVn SE SM SP SP 1 SPn Central Service Server Combined Document Transfer And Manipulation - Document Manipulatiodoken exchange Document Transfer and Manipulation - Document Manipulation - Symmetric European Workshop for Open Systems Final Document Synchronization step GCC conference Creation step Generic Confe
