ISO/IEC 10166-2:1991
(Main)Information technology — Text and office systems — Document Filing and Retrieval (DFR) — Part 2: Protocol specification
Information technology — Text and office systems — Document Filing and Retrieval (DFR) — Part 2: Protocol specification
Specifies: the abstract syntax of the access protocol; how the access protocol supports the abstract service as defined in ISO/IEC 10166-1; the mapping of the access protocol onto the services used; the requirements for conformance with the access protocol.
Technologies de l'information — Bureautique — Classement et récupération de documents — Partie 2: Spécification du protocole
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Standards Content (Sample)
INTERNATIONAL lSO/lEC
STANDARD
101166-2
First edition
1991-12-15
Information technology - Text and office
systems - Document Filing and Retrieval-
(DFR) -
Part 2:
Protocol specification
Technologies de l’information - Bureautique - Classemenf et
r&up&-ation de documents -
Partie 2: Spkification du protocole
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Reference number
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ISO/IEC 10166-2:1991(E)
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ISO/IEClO166-2:1991(E)
Table of Contents
Page
. . .
111
Foreword
iv
Introduction
Section 1: General
1 Scope
Normative references
2
Definitions
3
4 Abbreviations
Section 2 : DFR Access Protocol Specification
5 Overview of the Protocol
DFR Access Protocol Abstract Syntax Definition
6
Conformance
7
ANNEX
10
A Formal Assignment of Object Identifiers
0 ISO/IEC 1991
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ii
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ISO/IEC10166-2:1991(E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the
International Electrotechnical Commission) form the specialized system for
worldwide standardization. National bodies that are members of IS0 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. IS0 and IEC technical committees collaborate in
fields of mutual interest. Other international organizations, governmental and
non-governmental, in liaison with IS0 and IEC, also take part in the work
In the field of information technology, IS0 and IEC have established a 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.
International Standard ISO/IEC 10166-2 was prepared by Joint Technical
Committee ISO/IEC JTC 1, Information technology.
ISO/IEC 10166 consists of the following parts, under the general title
Information technology - Text and ofice systems - Document Filing and
Retrieval (DFR):
- Part 1: Abstract service definition and procedures
- Part 2: Protocol specification
Annex A forms an integral part of this part of ISO/IEC 10166.
ma*
111
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ISO/IEC10166-2:1991(E)
Introduction
The Document Filing and Retrieval (DFR) application provides the capability for large capacity non-
volatile document storage to multiple users in a distributed office system. This facility is particularly
useful in an environment where a large population of desktop workstations that have limited storage
capacity require access to large expensive storage devices.
Documents have associated attributes, to facilitate and control retrieval. Use of these attributes
according to given algorithms will enable documents in the document storage to be browsed, retrieved,
managed and deleted in a variety of ways. Access control protects documents from unauthorized
operations. Documents can be stored in nested groups. References to documents and groups can be
created and also stored in nested groups. With specific attributes a document can be designated a
version of another document. Single documents, references or groups can be moved from one group into
another group. Enumeration of groups, identification by other attributes besides names, identification
by conditions over attributes, search for documents meeting search criteria, concurrent access to the
same document, reference or group of documents are further functions provided by this standard for
the user requirements in an office environment.
The Document Filing and Retrieval application is one of a series of International Standards defining
applications needed in the area of office automation, as described in the Distributed-office-application
model [ISO/IEC 10031-l]. This part of ISO/IEC 10166 provides the functionality of document filing and
retrieval which directly supports the user in an ofice environment. Thus Document Filing and
Retrieval is not a general standardization of all types of filestores as they may exist in computing
systems. Rather it concentrates on the filing and retrieval of documents, as related to the task of office
work. Document Filing and Retrieval aims only at standardizing the model of such document stores
and the associated services and protocols defining the principles of how clients can access such
document store servers, where clients and servers reside on different nodes of a distributed office
system.
The Document Filing and Retrieval application is a distributed application located in the Application
Layer of the Reference Model for Open Systems Interconnection (see IS0 7498).
It should be noted that a Document Filing and Retrieval application will provide storage for an open-
ended set of document types. The content of the documents stored is transparent to the Document
Filing and Retrieval server.
NOTES
1 This part of ISO/IEC 10166 deals with individual Document Filing and Retrieval servers, it defines the Document
Filing and Retrieval (DFR-) protocol. This part of ISO/IEC 10166 governs the interactions of a Document Filing and
Retrieval client and a single Document Filing and Retrieval server. Future standardization will consider the facilities of a
Distributed Filing and Retrieval server system and the need for inter-server protocols and a DFR administration protocol. It
is intended that the results of the initial standardization work be extensible and support this future work.
2 This part of ISO/IEC 10166 does not presently include administration aspects of the Document Filing and Retrieval
abstract-service. For the time being these aspects are left to local implementation, although they are candidates for future
standardization.
iv
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INTERNATIONAL STANDARD ISO/IEC 10166-2: 1991 (E)
Information technology - Text and office systems -
Document Filing and Retrieval (DFR) -
Part 2: Protocol specification
Section 1: General
1 Scope
This part of ISO/IEC 10166 specifies the Document Filing and Retrieval access protocol.
It
- specifies the Abstract Syntax of the Document Filing and Retrieval access protocol;
- specifies how the Document Filing and Retrieval access protocol supports the Document Filing and
Retrieval Abstract Service as defined in ISO/IEC 10166-l;
- specifies the mapping of the Document Filing and Retrieval access protocol onto the services used;
- specifies the requirements for conformance with the Document Filing and Retrieval access
protocol;
Except for the specification of the conformance requirements, this specification uses the principles
established by the Abstract Service Definition Conventions [ISO/IEC 10021-31.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions
of this part of ISO/IEC 10166. At the time of publication, the editions indicated were valid. All
standards are subject to revision, and parties to agreements based on this part of ISO/IEC 10166 are
encouraged to investigate the possibility of applying the most recent editions of the standards
indicated below. Members of IEC and IS0 maintain registers of currently valid International
Standards.
Informationprocessing systems - Text communication - Remote Operations
ISO/IEC 9072-1:1989,
Part 1: Model, notation and service definition.
ISO/IEC 10166-1:1991, Information technology - Text and office systems - Document Filing and
Retrieval (DFR) - Part 1: Abstract service definition and procedures.
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150/IEC10166=2:1991(E)
3 Definitions
The terminology used in this part of ISO/IEC 10166 is defined in ISO/IEC 10166-l.
4 Abbreviations
The abbreviations used in this part of ISO/IEC 10166 are defined in ISO/IEC 10166-l.
2
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ISO/IEC10166-2:1991(E)
Section 2 : DFR Access Protocol Specification
5 Overview of the Protocol
. DFR Access Protocol Model
51
ISO/IEC 101664 describes an abstract model of the Document Filing and Retrieval Application, and
the DFR Abstract Service which is provided to the DFR-User.
This clause describes how the DFR Abstract Service is supported by instances of OS1 communication
when an abstract-service user and an abstract-service provider are realized as application-processes
located in different open systems.
In the OS1 environment, communication between application-processes is represented in terms of
communication between a pair of application-entities (AEs) using the presentation-service. The
functionality of an application-entity is factored into a set of one or more application-service-elements
(ASEs). The interaction between AEs is described in terms of their use of the services provided by the
ASEs.
Access to the DFR abstract service is supported by the DFR Service Element (DFRSE), supporting a
port paired between a DFR-User and the DFR-Server in the abstract model. The DFR Service Element
is an asymmetric
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