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本文(ITU-T T 432-1992 Document Transfer and Manipulation (DTAM) Services and Protocols - Service Definition - Terminal Equipment and Protocols for Telematic Services Amendment 1 (Study .pdf)为本站会员(livefirmly316)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ITU-T T 432-1992 Document Transfer and Manipulation (DTAM) Services and Protocols - Service Definition - Terminal Equipment and Protocols for Telematic Services Amendment 1 (Study .pdf

1、 ITU-T RECMN*T.432 92 4862.593 Ob07333 977 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE T.432 (09/92) TERMINAL EQUIPMENT AND PROTOCOLS FOR TELEMATIC SERVICES DOCUMENT TRANSFER AND MANIPULATION SERVICE DEFINITION (DTAM) SERVICES AND PROT

2、OCOLS - Recommendation T.432 ITU-T RECMN*T.432 92 = 4862593 Ob07334 803 FOREWORD The CCITT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU). CCIT is responsible for studying technical, operating and tariff ques

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

4、e members of CCITT between Plenary Assemblies is covered by the procedure laid down in CCITT Resolution No. 2 (Melbourne, 1988). Recommendation T.432 was revised by Study Group VI11 and was approved under the Resolution No. 2 procedure on the 18th of September 1992. CCIT NOTE In this Recommendation,

5、 the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. o IW 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, incl

6、uding photocopying and microfilm, without permission in writing from the ITU. CONTENTS I Scope and field of application 2 References . 3 Definitions and abbreviations 4 Conventions . 5 Model of the DTAM service 6 DTAM services . 6 . I 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.1 1 6.12 DTAM association

7、use control . DTAM negotiation capability Document bulk transfer Document unconfirmed manipulations . Document confirmed manipulations (for further study) Typed data transmission . Token control Exception report Document selection control (for further study) . Document management (for further study)

8、 . Document open control (for further study) . Grouping control (for further study) . 7 Functional units . Association use control functional unit 7.2 Capability functional unit Data transmission functional units . Exception report functional unit . Session management functional units . 7.1 7.3 7.4

9、7.5 7.6 Other functional units 8 9 Service overview . Service definition 9.1 D-INITIATE service 9.2 D-TERMINATE service Recommendation .432 (09/92) Page 1 1 1 1 2 3 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 7 8 8 13 i . . 9.3 9.4 9.5 9.6 9.7 9.8 9.9 9.10 9.1 1 9.12 9.13 9 . I4 9.15 9 . I6 9.17 D-P-ABORT

10、 service D-U-ABORT service . D-CAPABILITY service D-TRANSFER service . D-TYPED-DATA service D-UNCONFIRMED-CREATE service D-UNCONFIRMED-DELETE service . D-UNCONFIRMED-MODIFY service D-UNCONFRMED-CALL service . D-UNCONFIRMED-REBUILD service . D-TOKEN-GIVE service . D-CONTROL-GIVE service D-TOKEN-PLEAS

11、E service D-P-EXCEPTION-REPORT service D-U-EXCEPTION-REPORT service . Page 14 15 16 18 21 22 23 24 25 26 26 27 27 29 29 11 Recommendation T.432 (09/92) INTRODUCTION This Recommendation defines the services provided by an application-service-element, the Document Transfer and Manipulation Service Ele

12、ment (DTAM), to support applications in a distributed Telematic systems environment. This Recommendation is one of a set of Recommendations defining the services for sets of application- service-elemknts specifically used by a number of applications. . Recommendation T.432 (09/92) 111 Recommendation

13、 T.432 DOCUMENT TRANSFER AND MANIPULATION (DTAM) SERVICES AND PROTOCOLS - SERVICE DEFINITION (revised 1992) 1 Scope and field of application This Recommendation defines in an abstract way the Document Transfer and Manipulation (DTAM) service within the OS1 application layer in terms of a) b) c) The

14、DTAM service is provided in conjunction with the Reliable Transfer Service Element (RTSE) service (Recommendation X.218), the Association Control Service Element (ACSE) service (Recommendation X.213, and the Presentation service (Recommendation X.2 16). In the Transparent mode, DTAM service is provi

15、ded in conjunction with the Session service (Recommendation X.2 15) according to the rules of Recommendation T.62bis. the primitive actions and events of the service; the parameter data associated with each primitive action and event; the relationship between, and the valid sequences of, these actio

16、ns and events. This Recommendation does not specify individual implementations or products, nor does it contain the implementation of entitles and interfaces within a telematic system. 2 References References are listed in Recommendation T.43 I. 3 Definitions and abbreviation5 Terms and abbreviation

17、s are defined in Recornmendation T.43 1. 4 Conventions This Recommendation defines services for the DTAM following the descriptive conventions defined in Recommendation X.210. In Q 9, the definition of each DTAM service includes a table that lists the parameters of its primitives. For a given primit

18、ive, the presence of each parameter is described by one of the following values: blank not applicable M presence mandatory U C D R A P presence is a user option presence is conditional on a successful negotiation of another parameter in previous primitive presence is a DTAM-SE service-provider optio

19、n presence subject to conditions defined in Recommendation X.2 18 presence subject to conditions defined in Recommendation X.2 17 presence subject to conditions defined in Recommen b) the DTAM termination service is used by either the initiator or the responder being subject to owning the data token

20、 to dissolve the DTAM association between the DTAM-service-user and the DTAM- service-provider; Note - The DTAM termination service is not restricted to map into A-RELEASE service provided by ACSE or RT-CLOSE service provided by RTSE. c) the DTAM abort service is used by either the service users or

21、the service provider to dissolve the DTAM association unconditionally. 6.2 DTAM negotiation capability DTAM negotiation capabilities are expressed by means of the D-INITIATE and D-CAPABILITY services for indication and invocation of application and communication characteristics during an association

22、. Using the D-INITIATE service, an initial set of characteristics must be indicated, which partially can be modified or invoked by using the D-CAPABILITY service. These characteristics are in effect up to the next subsequent D-CAPABILITY service invocation. A D-CAPABILITY service is used by either t

23、he initiator or the responder being subject to owning the data token to indicate or invoke the above characteristics. Attention is drawn to the fact that the concept of how to use the D-INITIATE and D-CAPABILITY services is different for the two modes defined for the DTAM bulk transfer. a) Under the

24、 DTAM Transparent Mode, one set of application capabilities must be indicated in the D-INITIATE service. This set can be modified during the association. The parameters of the D-CAPABILITY service are mapped to the S-CAPABILITY-DATA service parameters. The invocation of specific characteristics, use

25、d in the following document, is achieved by using the S-ACTIVITY- START service element. The service parameters of the S-ACTIVITY -START request are derived from the “document profile which is not directly transferred to the receiving side under the DTAM Transparent Mode. However, the document profd

26、e is generated at the receiving side from the service parameters of S-ACTIVITY-START indication. b) Under the DTAM Normal Mode, several sets of application capabilities may be indicated (at least one set must be present) in the D-INITIATE service. There are no means to modify these parameters during

27、 the association. One specific set of application capabilities may be invoked by using the D-CAPABILITY service to indicate the specific characteristics of the document which will be subsequently transmitted. Recommendation T.432 (09/92) 3 ITU-T RECMN*T-432 32 4862573 Ob07343 T43 D 6.3 Document bulk

28、 transfer DTAM provides a function to transmit a document in bulk from one DTAM user to a peer under the communications environment defined by the DTAM association use and the DTAM capability functions. 6.4 Document unconfirmed manipulations DTAM provides a function to partially modify a document se

29、en by both users, by generating, revising or deleting structures (pages, blocks, etc.) of an existing document, or to create a new document by generating structure without any confirmation of the manipulation. Five services are associated with document manipulation: the unconfirmed create operation

30、service is used by both sides to add the constituents of ODA and Operational Structure to an existing document or to create constituents of ODA and Operational Structure; the unconfirmed delete operation service is used by both sides to delete the constituents of ODA and Operational Structure of an

31、existing document; the unconfirmed modify operation service is used by both sides to modify the attributes of the constituents of ODA and Operational Swcture of an existing document; the unconfirmed call operation service is used by both sides to request to address or to read an object of the Operat

32、ional Structure which contains a sequence of the DTAM protocol data units. These protocol data units are applicable to the existing document; the unconfirmed rebuild operation service is for further study. a) b) c) d) e) 6.5 Document confirmed manipulations (for further study) DTAM provides a functi

33、on to partially modify a document seen by both users, by generating, revising or deleting structure of an existing document or to create a new document by generating structure with a confirmation of the manipulation. 6.6 Typed data transmission DTAM optionally provides the function of typed data tra

34、nsmission which is independent of the data token control. 6.7 Token control Within DTAM, the right to transfer and manipulate documents is controlled in the following way: - - Token control provides services for exchanging the control of document transfer and for exchanging the data the control of d

35、ocument transfer is associated with document bulk transfer; the data token is associated with document manipulation. token. 6.8 Exception repon DTAM optionally provides two exception reporting functions for exceptional error control during the DTAM communication: - - provider exception report (for f

36、urther study); user exception report (for further study). 6.9 Document selection control (for further study) Four services are associated with document selection control: a) the document selection service is used by the initiator to select an existing document and to bind the specified document to t

37、he DTAM application-association; 4 Recommendation T.432 (09/92) 6. i0 6.1 1 6.12 7 ITU-T RECMN*T*432 72 4862573 0607342 78T b) the document deselection service is used by the initiator to release the binding between the DTAM application-association and the specified document; the document creation s

38、ervice is used by the initiator to create a specified document and to select the newly created document; the document deletion service is used by the initiator to release an existing selection in such a way that the previously selected document ceases to exist. c) d) Documenl management (for further

39、 study) Two services are associated with document management: a) the read attributes service is used by the initiator to interrogate the document attributes of the selected documen t; the change attributes service is used by the initiator to modify the document attributes of the selected documen t.

40、b) Bocumenl open control (for further study) Two services are associated with document open control: a) the document open service is used by the initiator to establish the presentation context and the concurrency and commitment controls for data transfer; the document close service is used by the in

41、itiator to release the context established by the document open service. b) Grouping control (for further study) Two services are associated with grouping control: a) the beginning of grouping service is used by the initiator to indicate the start of a set of grouped primitives which are to be proce

42、ssed and responded to as a group; the end of grouping service is used by the initiator to indicate the end of a set of grouped primitives which are to be processed and responded to as a group. b) Functional units DTAM service classes in Recommendation T.431 and in functional units are logical groupi

43、ngs of related services defined in this Recommendation for the purpose of - negotiation of the DTAM-service-users requirements during DTAM application-association establishment; reference by other CCITT Recommendations. - 7.1 Association use control functional unit The DTAM provides the trigger for

44、the establishment and use of the association. The association use control unit supports the basic DTAM services for unique discrimination of both application entities (AEs), selection of functional units, set of an initiai DTAM capability, establishment, termination and abort of association use. 7.2

45、 Capabiliry functional unir The DTAM context is the communication environment depending on the document architecture (ODA and Operational Suucture) used for data transmission on an association. In addition to the initiai DTAM context setling at the start of association use, a context management unit

46、 is optionally used to set a more detailed communicatiori environment, such as optional application capabilities. Recommendation T.432 (09/92) 5 7.3 Data transmission functional units The DTAM provides document transfer methods, such as bulk document transfer, document manipulation and typed data tr

47、ansmission, The data transmission unit consists of the following four units. 1.3.1 Document bulk transfer functional unit The DTAM has a function to transmit the document in bulk to the other DTAM user under the communication environment defined at the start of the association use and/or the capabil

48、ity control. The documents represented by the Document Interchange Format defined in Recommendations T.415 and T.441 are transmitted using the document bulk transfer unit. Other types of data may be transferred by using the transfer option defined for the DTAM bulk transfer. Note - The detailed defi

49、nition of Recommendation T.441 (Interchange Format of Operational Structure) depends on the ongoing work on Operational Smcture. 1.3.2 Document unconfirmed manipulation finctional unit DTAM provides a function to partially modify a document by generating, revising or deleting structures of an existing document or to create a new document. The DTAh4 user uses a document manipulation unit to manipulate structures of an existing document or to create a new document. 7.3.3 Document confirmed manipulation functional unir Use of this functional unit is for further study.

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