A proposed standards policy for the insis project

Directorate-General For Translation European Commission

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Information technology and telecommunications

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• Publié par: EUROPEAN-COMMISSION
• Nombre de lectures: 4
• Langue: English
• Poids de l'ouvrage: 2 Mo

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Commission of the European Communities
information management
A PROPOSED STANDARDS POLICY
FOR THE INSIS PROJECT
Report
EUR 7896 EN
Blow-up from microfiche original Commission of the European Communities
information management
A PROPOSED STANDARDS POLICY
FOR THE INSIS PROJECT
A.E.T. FORSTER - H. McGREGOR ROSS
Patscentre International
Cambridge Division
Melbourn
NR Royston, Hertfordshire
England
FINAL REPORT PARLEUTO" Π1 lioth.
N. C.
Directorate-General for Information, Market and Innovation
1982 EUR 7896 EN Published by the
COMMISSION OF THE EUROPEAN COMMUNITIES
Directorate-General
Information Market and Innovation
Bâtiment Jean Monnet
LUXEMBOURG
LEGAL NOTICE
Neither the Commission of the European Communities nor any person
acting on behalf of the Commission is responsible for the use which might
be made of the following information
»ECSC-EEG-EAEC Brussels · Luxembourg 1982 CONTENTS
EXECUTIVE SUMMARY 1
1 . INTRODUCTION 7
1.1 Scope of the Standards Policy
1.2 Approach to the Development of a Policy
2. CURRENT OBJECTIVES OF INSIS 9
3. SYSTEMS AND EQUIPMENTS AND RELATED REQUIREMENTS FOR STANDARDS 11
3.1 Telecommunications Systems and Equipments
3.2 Processor Systems and Terminals
4. STANDARDS ORGANISATIONS AND PROCEDURES 18
4.1s
4.1.1 CCITT and CCIR
4.1.2 CEPT
4.1.3 Application of CCITT and CCIR recommendations
4.2 Processors and Terminals
5. CURRENT CCITT AND CCIR STUDIES "
6.T ISO AND IEC STUDIES 24
7. SOME ISSUES AFFECTING STANDARDS POLICY
7.1 Technical Issues
7.1.1 Use of State-of-the-Art Technology
7.1.2 Advantages and Disadvantages of Standardisation
7.1.3 Justifiable Degrees of Standardisation
7.1.4 Rate of Change of Technology
7.1.5 Equipment Lifetimes
7.1.6 Validation of Standards
7.1.7 The smallest cell which will require no
standardisation procedures
7.2 Procedural and Other Non-Technical Issues
7.2.1 Participation in the Development of Standards
7.2.2 Need for more User Inputs to Standards Studies
7.2.3 'Retrospective' and 'Prospective' Standardisation
7.2.4 'Top Down' or 'Bottom Up' Approaches
8. IMPLEMENTATION TIMETABLE 33
8.1 Pilot Schemes
8.2 Initial Implementation
8.3 Mainn
8.4 Replacement
Continued.. CONTENTS (Continued...)
9. DEVELOPMENT OF STANDARDS POLICY 35
9.1 Objectives ofStandardsPolicy
9.2Specimen ConceptsofSelectedSub-Systems
9.2.1 HighSpeedFacsimile Sub-System
9.2.2 CommunicatingTextProcessors Sub-System
9.3 Standards Issues and Options for Conceptual Models
9.3.1 High-Speed Facsimile Sub-System
9.3.2Communicating Text Processors Sub-System
10. CONCLUSIONS 47
10.1Timelinessof Availability of New Standards
10.2Implementation of Telecommunication s
10.3n of Standards for ProcessorsandRelated
Terminals
10.4Need for Definition of concepts and Concept Options
10.5Participation by the Commission in Standards Work
11. RECOMMENDATIONS 49
11.1Scopeofthe Standards Policy for INSIS
11.2Mechanismfor Achieving Within the CommissionaGood
Understanding of Standards Work and Standards
11.2.1Telecommunications
11.2.2Processors and Terminals
MechanismWhereby INSIS may Evolve so as toUse11.3
VoluntaryISO/IEC Standards
Rationale for Decisions when Agreed International 11-4
Standards are not Adopted
11.5 Rationale for Identifying Possible Shortfalls in
Standards
11.6 Acceleration of Standardisation
11.7 Other Aspects
ANNEX I Existing CCITT and ISO/IEC Standards for INSIS 58
Current Standards Studies by CCITT and ISO/IECfor INSIS 67ANNEX Π
ANNEX III Diagrams of Specimen Concepts ηη Page 1.
EXECUTIVE SUMMARY
INTRODUCTION
This report considers the policy that should be adopted towards
standards for the INSIS * project, covering the period up to 1995.
The policy of the Commission is to adopt agreed international
standards for Informatics equipment and systems wherever
these are available.
The factors that need to be taken into account in formulating
the standards policy include
the objectives of the INSIS project
the specific systems and equipments to be implemented in INSIS
the study programmes and procedures of the bodies responsible
for standards
the value to be attached to the use of a particular standard
in a given circumstance
the project timetables.
INSIS SUB-SYSTEMS
The specific user services which will be provided by INSIS have yet
to be determined in the light of the results of ongoing studies.
The standards required for the services of INSIS will embrace
both telecommunication systems (including certain types of terminals
e.g. facsimile) for which the CCITT (International Telegraph,
Telepnone Consultative Committee) and CCIR (International Radio
Consultative Committee) have responsibility, and also processors
and related terminal equipment for which the ISO (International
Standards Organisation) and IEC (International Electro-technical
Committee) prepare standards.
Table 1 lists the likely user services required, the sub-systems
that would be required, and the responsibility of CCITT, CCIR, ISO and
IEC for standards. The sub-systems for which ISO/IEC are responsible
all use the CCITT telecommunication standards to some extent.
However, they are largely distinguished by being involved with the
preparation, presentation and interchange of documents; and,
more particularly, with the processing of elements of data within
the text of documents.
Inter-Institutional Information System Page 2.
TABLE 1: POSSIBLE NEW SERVICES FOR INSIS AND RESPONSIBILITIES FOR
STANDARDS
SERVICE
USER
CCITT/CCIR ISO/IEC
SUB-SYSTEM SERVICE
VOICE Enhanced Telephony
PABXs, ISDN
Store and Forward
(Integrated
Voice
Services Digital
Network)
Multi-Point Audio
Conferencing
Encrypted Voice Digital Telephone
Encryption* Encryption*
ISDN
VIDEO Video Conferencing Video Terminals
Transmission
-
Links
TEXT Fascinale Fax Terminals Document Inter­
COMMUNICA­ change
Data Networks
TION/TEXT
PROCESSORS ISDN
Text communication Télétex Document Inter­
change
Data Networks
Processing
ISDN
of Text
Inter­
communication of
Text
INFORMATION Videotex Interactive Processor Aspects
STORAGE/ Videotex and Interchange
PROCESSING/ Terminals between Centres
RETRIEVAL
Data Services Data Networks Processor and
Terminal Aspects
ISDN
Télétex
Telewriting TELEWRITING Telewriting
-
Terminal
INTEGRATED Multi-function ISDN Processor and
work station SERVICES Terminal Aspects
Facsimile Terminals
(voice, text,
image, data) Digital Telephones Local Networks
Responsibility to be determined. Page 3.
STANDARDS ORGANISATIONS AND PROCEDURES
The bodies responsible for studying and recommending standards for
international telecommunications, CCITT and CCIR, are both agencies of the
ITU (International Telecommunications Union). Participants in the work
of the Study Groups include representatives of national Administrations and
Operating Agencies and also industrial organisations. The Commission is
not directly represented. The CCITT and CCIR reach decisions on
Recommendations on the basis of unanimous agreement. In practice this
means that Recommendations often include options in order that
agreement can be unanimous. There is a long-established practice
that PTTs invariably respect them.
Within Europe, the PTTs consult together within CEPT (Conference of
European Post and Telegraph Administrations), to make agreements (in
those cases where the CCITT/CCIR Recommendations recognise options and
alternatives) on the specific options to be used by the members PTTs. The
purchasing power of the PTTs has ensured that the standards agreed within CEPT
are well supported by European industry. The influence of CEPT has also
been very effective in ensuring that European interests are well
recognised by the CCITT and CCIR, as recently exemplified by Télétex
and Videotex.
The organisations responsible for standards for processors and
terminals are ISO and for specifically electrical topics IEC. ISO
and IEC are made up of the nationals bodies together with many
liaison organisations, including the Commission. ISO Technical
Committee 97 deals with computing and office machines. ISO and IEC
report to UNO.
The ISO Directives lay down how an ISO standard shall be prepared
and the voting procedure. It is important to note that this is
different from the CCITT voting rules, especially:
i) Unanimity is not required. Instead, any negative vote
must state its reasons and the technical sub-committee
must seek to accommodate these.
ii) Each standard must be self-consistent, should be complete
(within its scope), and preferably be consistent with
other ISO standards.
With respect to the INSIS project, the primary fact to be
emphasised is that the Commission has a right to take part
in and