EN 61069-6:1998
(Main)Industrial-process measurement and control - Evaluation of system properties for the purpose of system assessment - Part 6: Assessment of system operability
Industrial-process measurement and control - Evaluation of system properties for the purpose of system assessment - Part 6: Assessment of system operability
EN following parallel vote
Leittechnik für industrielle Prozesse - Ermittlung der Systemeigenschaften zum Zweck der Eignungsbeurteilung eines Systems - Teil 6: Eignungsbeurteilung der Systembedienbarkeit
Mesure et commande dans les processus industriels - Appréciation des propriétés d'un système en vue de son évaluation - Partie 6: Evaluation de l'opérabilité d'un système
Industrial-process measurement and control - Evaluation of system properties for the purpose of system assessment - Part 6: Assessment of system operability (IEC 61069-6:1998)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-1998
Industrial-process measurement and control - Evaluation of system properties for
the purpose of system assessment - Part 6: Assessment of system operability (IEC
61069-6:1998)
Industrial-process measurement and control - Evaluation of system properties for the
purpose of system assessment -- Part 6: Assessment of system operability
Leittechnik für industrielle Prozesse - Ermittlung der Systemeigenschaften zum Zweck
der Eignungsbeurteilung eines Systems -- Teil 6: Eignungsbeurteilung der
Systembedienbarkeit
Mesure et commande dans les processus industriels - Appréciation des propriétés d'un
système en vue de son évaluation -- Partie 6: Evaluation de l'opérabilité d'un système
Ta slovenski standard je istoveten z: EN 61069-6:1998
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME
CEI
INTERNATIONALE
IEC
61069-6
INTERNATIONAL
Première édition
STANDARD
First edition
1998-04
Mesure et commande dans
les processus industriels –
Appréciation des propriétés d’un système
en vue de son évaluation –
Partie 6:
Evaluation de l’opérabilité d’un système
Industrial-process measurement and control –
Evaluation of system properties for the purpose
of system assessment –
Part 6:
Assessment of system operability
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61069-6 IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION . 9
Clause
1 Scope. 13
2 Normative references. 13
3 Definitions. 15
4 Operability properties. 15
4.1 General. 15
4.2 Operability efficiency. 19
4.3 Operability intuitiveness. 19
4.4 Operability transparency. 21
4.5 Operability robustness. 21
5 Review of the system requirements document (SRD). 23
6 Review of the system specification document (SSD) . 23
7 Assessment procedure. 25
7.1 General. 25
7.2 Analysis of the system requirements document and system specification document . 25
7.3 Designing the assessment programme . 27
7.4 Assessment programme. 29
8 Evaluation techniques. 31
8.1 General. 31
8.2 Analytical evaluation techniques . 35
8.3 Empirical evaluation techniques . 37
8.4 Influencing conditions. 39
9 Execution and reporting of the assessment. 39
Annexes
A (informative) Phases of a system life cycle . 41
B (informative) Guide on factors to look for when reviewing the operability requirements
stated in the system requirements document . 43
C (informative) Bibliography. 49
61069-6 IEC:1998 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
EVALUATION OF SYSTEM PROPERTIES FOR THE PURPOSE
OF SYSTEM ASSESSMENT –
Part 6: Assessment of system operability
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61069-6 has been prepared by subcommittee 65A: System aspects,
of IEC technical committee 65: Industrial-process measurement and control.
The text of this standard is based on the following documents:
FDIS Report on voting
65A/246/FDIS 65A/251/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
61069-6 IEC:1998 – 7 –
The relation of this part to the other parts of IEC 61069 and the relative place of this part within
this standard is shown in figure 1.
Part 1 provides the overall guidance and as such is intended as a "stand-alone" publication.
Part 2 details the assessment methodology.
Parts 3 to 8 provide guidance on the assessment of specific groups of properties.
The division of properties in parts 3 to 8 have been chosen so as to group together related
properties.
IEC 61069 consists of the following parts, under the general title: Industrial-process
measurement and control. Evaluation of system properties for the purpose of system
assessment:
Part 1: General considerations and methodology
Part 2: Assessment methodology
Part 3: Assessment of system functionality
Part 4: Assessment of system performance
Part 5: Assessment of system dependability
Part 6: Assessment of system operability
1)
Part 7: Assessment of system safety
1)
Part 8: Assessment of not task related system properties
Annexes A, B and C are for information only.
___________
1)
To be published.
61069-6 IEC:1998 – 9 –
INTRODUCTION
This part of IEC 61069 deals with the method which should be used to assess the operability of
industrial process measurement and control systems.
Assessment of a system is the judgement, based on evidence, of the system's suitability for a
specific mission or class of missions.
To obtain total evidence would require complete (i.e. under all influencing conditions)
evaluation of all system properties relevant to the specific mission or class of missions.
Since this is rarely practical, the rationale on which an assessment of a system should be
based is:
– to identify the criticality of each of the relevant system properties;
– to plan for evaluation of the relevant system properties with a cost-effective dedication of
effort to the various properties.
In conducting an assessment of a system it is crucial to bear in mind the need to gain a
maximum increase in confidence in the suitability of a system within practical cost and time
constraints.
An assessment can only be carried out if a mission has been stated (or given) or if any mission
can be hypothesized. In the absence of a mission, no assessment can be made, however
evaluations (as defined in IEC 61069-1) can still be specified and be carried out for use in
assessments performed by others.
In such cases, the standard can be used as a guide for planning an evaluation and it provides
procedures for performing evaluations, since evaluations are an integral part of assessment.
61069-6 IEC:1998 – 11 –
Part 1
General considerations
and methodology
Scope
Definitions
Basis of assessment
Assessment consideration
The system
Properties
Influencing conditions
Assessment procedure
Definition of the objectives
Design and layout
Part 2
Methodology
Analysis of objectives
Analysis of system requirements
Analysis of system specification
Planning Design of assessment programme
Facilities
Expertise
Time
Funds
Protocol Execution of assessment programme
Monitor and control
Part 3: Functionality
Part 4: Performance
Part 5: Dependability
Part 6: Operability
Part 7: Safety
Part 8: NTR properties
Assessment report
Figure 1 – General layout of IEC 61069
61069-6 IEC:1998 – 13 –
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
EVALUATION OF SYSTEM PROPERTIES FOR THE PURPOSE
OF SYSTEM ASSESSMENT –
Part 6: Assessment of system operability
1 Scope
This part of IEC 61069 covers the assessment of the operability of industrial process
measurement and control systems.
The assessment methodology detailed in IEC 61069-2 is applied to obtain the operability
assessment programme.
The subsidiary operability properties are analysed, and criteria to be taken into account when
assessing operability is described.
References are made to different supplementary operability evaluation techniques.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 61069. At the time of publication, the editions indicated
were valid. All normative documents are subject to revision, and parties to agreements based
on this part of IEC 61069 are encouraged to investigate the possibility of applying the most
recent editions of the normative documents indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards
IEC 61069-1:1991, Industrial-process measurement and control – Evaluation of system
properties for the purpose of system assessment – Part 1: General considerations and
methodology
IEC 61069-2:1993, Industrial-process measurement and control – Evaluation of system
properties for the purpose of system assessment – Part 2: Assessment methodology
IEC 61069-3:1996, Industrial-process measurement and control – Evaluation of system
properties for the purpose of system assessment – Part 3: Assessment of system functionality
IEC 61069-4:1997, Industrial-process measurement and control – Evaluation of system
properties for the purpose of system assessment – Part 4: Assessment of system performance
IEC 61069-8,— Industrial-process measurement and control – Evaluation of system properties
1)
for the purpose of system assessment – Part 8: Assessment of not task related properties
ISO 9241-10:1996, Ergonomic requirements for office work with visual display terminals (VDTs) –
Part 10: Dialogue principles
___________
1)
To be published.
61069-6 IEC:1998 – 15 –
3 Definitions
For the purpose of this part of IEC 61069 the following definitions apply:
3.1
operability
the extent to which the operating means provided by the system are efficient, intuitive,
transparent and robust to accomplish the operators’ tasks
3.2
operator
the person (or persons) who use(s) the system to fulfill the mission
NOTE – In this standard operator is used in a generic way and includes all persons who may perform any tasks to
fulfill the mission.
3.3
efficiency
the extent to which the operating means provided by the system minimise operator time and
effort required in using the system to accomplish his tasks within stated constraints
3.4
i
...
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