ITU-T T 431-1992 Document Transfer and Manipulation (DTAM) - Services and Protocols - Introduction and General Principles - Terminal Equipment and Protocols for Telematic Services .pdf

1、CCITT RECMN*T.431 92 q8b2511 0579270 L9b INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TERMINAL EQUIPMENT AND PROTOCQLS FOR TELEMATIC SERVICES T.431 (09/92) DOCUMENT TRANSFER AND MANIPULATION INTRODUCTION AND GENERAL PRINCIPLES (DTAM) -

2、SERVICES AND PROTOCOLS - I Recommendation T.431 FOKEW ORD The CCITT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU). CCITT is responsible for studying technical, operating and tariff questions and issuing Reco

3、mmendations on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCITT which meets every four years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT be

4、tween Plenary Assemblies is covered by the procedure laid down in CCITT Resolution No. 2 (Melbourne, 1988). Recommendation T.431 was revised by Study Group VI11 and was approved under the Resolution No. 2 procedure on the 18 of September 1992. CCIT NOTE In this Recommendation, the expression “Admini

5、stration” is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. O IT 1993 Aii 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

6、microfilm, without permission in writing from the ITU. CCITT RECMN*T.431 92 m 4862571 0579272 Tb9 m CONTENTS Scope and field of application References . Definitions . 3.1 3.2 Reference model definitions 3.3 Service convention definitions Abbreviations . DTAM for Telematic applications - General conc

7、epts . 5.1 The approach to the integrated Telematic application . 5.2 General communication functions . 5.2.1 Document bulk transfer 5.2.2 Remote document manipulations . 5.2.3 Remote document access . 5.2.4 Remote document management 5.3 Communication support functions . 5.4 Telematic Protocol Arch

8、itecture (TPA) model 5.5 Intercommunication with other environment . Overview of Recommendations T.431 to T.433 . 6.1 T.431 introduction and general principles . 6.2 T.432 DTAM service definition 6.3 T.433 DTAM protocol specification 7.1 General principle . 7.2 Service class . 7.3 Functional units .

9、 7.4 Communication support functions . 7.5 DTAM service and protocol definitions . Application rules for communication application profiles Use of communication application profile . Service classes, functional units and communication support functions 8.1 8.2 8.3 Service classes 8.1.1 Document bulk

10、 transfer class . 8.1.2 Document manipulation class . 8.1.3 Document bulk transfer and manipulation class 8.1.4 Remote document access class . 8.1.5 Remote document management class . Functional units . 8.2.1 Association use control functional unit (Kernel) . 8.2.2 Capability functional unit . 8.2.3

11、 Data transmission functional units 8.2.4 Session management functional unit 8.2.5 Exception report functional unit . 8.2.6 Remote document access functional unit 8.2.7 Remote document management functional unit Communication support functions . 8.3.1 8.3.2 Document manipulation class . 8.3.3 Docume

12、nt bulk transfer and manipulation class 8.3.4 8.3.5 Remote document management class (RDM) . Document bulk transfer class . Remote document access class (RDA) . Page 1 1 3 3 3 4 4 5 5 5 5 5 6 6 6 6 8 8 8 8 8 8 8 10 10 10 10 10 11 11 11 11 12 12 12 12 12 12 12 12 13 13 13 13 13 13 13 13 Recommendatio

13、n T.431 (09/92) CCITT RECMN*T.q3L 92 H 4Bb259L 0577273 7T5 INTRODUCTION This Recommendation is one of a set of TAOO-Series Recommendations to facilitate the interconnection of Telematic systems and terminals. It is related to other CCITT Recommendations in the set as defined by the Reference Model f

14、or Open Systems Interconnection (see Recornmendation X.200). The Reference Model subdivides the area of standardization for interconnection into a series of layers of specification, each of manageable size. The T.430-Series Recommendations define a Document Transfer and Manipulation (DTAM) Service a

15、nd specify u DTAM Protocol available within the Application Layer of the Reference Model. The DTAM defined in this serics of Recommendations is one of the Application Service Elements (ASE), which is specifically designed for document handling. It is concerned with identifiable bodies of information

16、 which can be treated as documents, and which may bc storcd within opcn systems or accesscd, transfcrred and manipulated between application processes. This Recommendation and Recommendations T.432 and T.433 define general principles and application rules, basic DTAM services, and protocol, respecti

17、vely. They provide sufficient facilities to support DTAM and establish a framework for DTAM management. This Recommendation defines in an abstract way application rules of the DTAM service. DTAM applications defined using these series of Recommendations are specified in terms of service classes. A s

18、ervice class consists of a combination of functional units and communication support functions. The tcrm document used in this series of Recommendations covcrs ODA documents as well as other types of information, e.g. files. Il Recommendation TA31 (09/92) CCITT RECMNMT-431 92 D 4862593 0579274 831 2

19、 References - Recommendation TA2 bis, Telematic control procedures for Teletex and Group 4 Facsimile Services based on Recommendations X.215 and X.225. Recommendation T.400, Introduction to Document Architecture, Transfer and Manipulation. Recommendation T.411, Open Document Architecture (ODA) and I

20、nterchange Format - Introduction Recommendation T.412, Open Document Architecture (ODA) and Interchange Format - Document St ru ct u res. Recommendation T.414, Open Document Architecture (ODA) and Interchange Format - Document Profile. - Recommendation T.415, Open Document Architecture (ODA) and Int

21、erchange Format - Open - - l and General Principles. I - - Document Interchange Format (ODIF). Recommendation T.431 DOCUMENT TRANSFER AND MANIPULATION (DTAM) - SERVICES AND PROTOCOLS - LNTRODUCCION AND GENERAL PRINCIPLES (revised 1992) 1 Scope and field of application This Recommendation defines in

22、an abstract way application rules of the DTAM service. Applications defined using this series of Recommendations are specified in terms of service classes. A service class consists of a combination of functional units and communication support functions. The combination of functional units and commu

23、nication support functions are 1) - - capability unit; - document bulk transfer unit; - document unconfirmed manipulation unit; - - typed data transfer unit; - - - token control unit; - Functional units provided by DTAM association use control unit (Kernel); document confirmed manipulation unit (see

24、 Note); remote document management unit (see Note); remote document access unit (see Note); exception report unit (see Note). Note - The use of these functional units is left for further study. 2) Communication supportfunctions - - - - Association Control Service Element (ACSE) and Presentation laye

25、r service; Reliable Transfer Service Element (RTSE); Remote Operation Service Element (ROSE) (see Note); Session service (see Recommendation X.215) according to the rule of Recommendation T.62 bis. Note - The use of this communication support function is left for further study. Recommendation T.431

26、(09/92) 1 CCITT REClN*T-431 72 4862573 0577275 778 - Recommendation T.416, Open Document Architecture (ODA) and Interchange Format - Character Content Architectures. - Recommendation T.417, Open Document Architecture (ODAJ and Interchange Format - Raster Graphics Content Architectures. - Recommendat

27、ion T.418, Open Document Architecture (ODA) and Interchange Format - Geometric Graphics Content Architectures. - Recommendation T.432, Document Transfer and Manipulation (DTAM) - Services and protocols: Service Definition. - Recommendation T.433, Document Transfer and Manipulation (DTAM) - Services

28、and protocols: Protocol Specification. - Recommendation T.441, Document Transfer and Manipulation (DTAM) - Operational Structure. - Recommendation X.200, Open Systems Interconnection (OSI) - Model and Notation - Reference Model of Open Systems Interconnection for CCIn Applications. - Recommendation

29、X.208, Open Systems Interconnection (051) - Model and Notation - Specification of Abstract Syntax Notation One (ASN. I). - Recommendation X.209, Open Systems Interconnection (OSI) - Model and Notation - Specification of Basic Encoding Rules for Abstract Syntax Notation One (ASN. I). - Recommendation

30、 X.210, Open Systems Interconnection (OSI) - Service Definitions - Open Systems Interconnection Layer Service Definition Conventions. - Recommendation X.215, Open Systems Interconnection (OSI) - Service Definitions - Session Service Definition for Open Systems Interconnection for CCIT Applications.

31、- Recommendation X.2 16, Open Systems Interconnection (0.51) - Service Definitions - Presentation Service Definition for Open Systems Interconnection for CCIT Applications. - Recommendation X.2 17, Open Systems Interconnection (OSI) - Service Definitions - Association Control Service Definition for

32、Open Systems Interconnection for CCIT Applications. - Recommendation X.218, Open Systems Interconnection (051) - Service Definitions - Reliable Transfer: Model and Service Definition. - Recommendation X.219, Open Systems Interconnection (OSI) - Service Definitions - Remote Operation: Model, Notation

33、 and Service Definition. - Recommendation X.225, Open Systems Interconnection (OSI) - Protocol Specifications - Session Protocol Specijcation for Open Systems Interconnection for CCITTApplications. - Recommendation X.226, Open Systems Interconnection (OSI) - Protocol Specifications - Presentation Pr

34、otocol Specification for Open Systems Interconnection for CCIT Applications. - Recommendation X.227, Open Systems Interconnection (OSI) - Protocol Specifications - Association Control Protocol Specification for Open Systems Interconnection for CCIT Applications. .- Recommendation X.228, Open Systems

35、 Interconnection (OSI) - Protocol Specifications - Reliable Transfer Protocol Specification for Open Systems. - Recommendation X.400, Message handling systems: Message handling system and service overview. 2 Recommendation T.431 (09/92) CCITT RECMN*T-431 92 48b259L 0577276 bOY 3 Definitions Unless e

36、xplicitly, all terms apply to the view of a system presented for the purpose of open systems interconnection. This implies that the terms relate to a DTAM rather than to any real documents in local system. The definitions are grouped into major categories, and ordered alphabetically within each cate

37、gory. For the purpose of T.430-Series Recommendations, the following definitions apply: 3.1 DTAM service and protocol definitions The following definitions are applied to the series of Recommendations T.431 to T.433, in addition to the definitions defined in other T.4-Series Recommendations: 3.1. I

38、document bulk transfer Bulk transmission of a document as a whole. 3.1.2 document bulk transfer and manipulation An arbitrary combination of document bulk transfer and document manipulation. 3.1.3 document manipulation Creation, deletion or modification of one or more constituents or subsrructures o

39、f a document. 3.1.4 DTAM user That portion of the application entity which conceptually invokes the DTAM service. 3. I .5 remote document access Document selection and access rights via communication, 3.1.6 remote document management Document creation or deletion via communication. 3.1.7 service ele

40、ment A unit of standardization specifying a complete group of functions. 3.1.8 service primitive The smallest defined interaction between the user and the provider of a communication service. 3.2 Reference model definitions T.430-Series Recommendations are based on the concept developed in Recommend

41、ation X.200 and make a) application-entity; use of the following terms defined in it: b) application-process; c) application service element; d) (N)-connection; Recommendation T.431 (09/92) 3 CCITT RECMN*T.431 92 = 48b2.591 0579277 540 e) open system; f) (N)-protocol; g) (N)-protocol-control-informa

42、tion; h) (N)-protocol-data-unit; i) (N)-service; j) (N)-service-access-point; k) (N)-service-access-point-address; 1) (N)-service-data-unit; m) (N)-user-data; n) user element. 3.3 Service convention definitions T.430-Series Recommendations make use of the following terms defined in Recommendation X.

43、210 as they a) confirm; b) indication; c) primitive; d) request; e) response; 0 service provider; g) service user. apply to the DTAM service: 4 Abbreviations Abbreviations defined in other Recommendations of the T.400-Series apply also to this Recommendation. T.430-Series Recommendations also use th

44、e following abbreviations: 4 ACSE APDU ASE BT BTM DM MHS-SE os1 PSAP ROSE RTSE TPA M O * Association Control Service Element Application Protocol Data Unit Application Service Element Document Bulk Uansfer class Document Buk transfer and Manipulation class Document Manipulation class Message Handlin

45、g System Service Element Open Systems Interconnection Presentation Service Access Point Remote Operation Service Element Reliable Transfer Service Element Telematic Protocol Architecture Mandatory Optional At least one selection Not permitted Recommendation T.431 (09192) CCITT RECMN*T.431 72 4862571

46、 0579278 487 5 DTAM for Telematic applications - General concepts 5.1 The approach to the integrated Telematic application T AOO-Series Recommendations specify the integrated approach for the Telematic application by defining the Document Transfer and Manipulation (DTAM) which is the common communic

47、ation function for Telematic services located in the OS1 application layer. DTAM provides document handling facilities in order to realize document bulk transfer, document manipulation, document access and document management for various Telematic applications such as G4 facsimile, mixed mode, proce

48、ssable mode, Videotex, and so on. 5.2 General communication functions DTAM provides the following general communication functions. 5.2.1 Document bulk transfer This function is used to transfer a document from one system to another in an end-to-end communication. Two modes are defined to perform Doc

49、ument Buk Transfer: a) NomalMode Document buk transfer is ensured in conjunction with the use of ACSE, RTSE and presentation. b) Transparent Mode DTAM protocol elements are directly mapped to the session layer. This mode is only applicable to facsimile Group 4 application. 5.2.2 Remote document manipulations An operation can be applied to one or more constituents or a substructure of document and/or the application defined structures such as the operational structure. Operations applying to more than one constituent or a substructure are performed by applying the operation to e