Use case methodology - Part 2: Definition of the template for use cases, actor list and requirements list

IEC 62559-2:2015 defines the structure of a use case template, template lists for actors and requirements, as well as their relation to each other. In this document, a standardized template for the description of use cases is defined for various purposes like the use in standardization organizations for standards development or within development projects for system development. This document was developed for general application in various domains and systems. The energy system/smart grid is used as example in this document as it was one of the first usage areas for this use case template, but this general template can be applied in other usage areas different from energy systems as well (e.g. smart home or electro-mobility). The motivation, background information on use cases, recommendations for the handling of use cases and the processes for the description of use cases inside standardization and in relation to a central use case repository is described in IEC 62559-1. This first edition cancels and replaces IEC PAS 62559:2008 which had been published together with EPRI. Main content of the former PAS will be transferred to the new IEC 62559-4.

Anwendungsfallmethodik - Teil 2: Definition der Anwendungsfallvorlage, Akteurliste und der Anforderungsliste

Méthodologie des cas d'utilisation - Partie 2: Définition du formulaire type de modèle de cas d'utilisation, de la liste d'acteurs et de la liste d'exigences

L'IEC 62559-2:2015 définit la structure d'un formulaire type de modèle de cas d'utilisation, les listes d'acteurs et d'exigences et leurs relations respectives. Dans le présent document, un modèle normalisé pour la description des cas d'utilisation est défini pour diverses fins comme l'utilisation dans les organisations de normalisation pour le développement de normes ou dans les projets de développement pour le développement de systèmes. Le présent document a été développé pour une application générale dans divers domaines et systèmes. Le système énergétique/réseau électrique intelligent est utilisé comme exemple dans le présent document car il s'agit d'un des premiers domaines d'utilisation pour ce formulaire type de modèle de cas d'utilisation, mais ce modèle général peut également être appliqué dans d'autres domaines d'utilisation différents des systèmes énergétiques (par exemple, maison intelligente ou électromobilité). La motivation, les informations générales sur les cas d'utilisation, les recommandations relatives à l'utilisation des cas d'utilisation et les processus de description des cas d'utilisation au sein de la normalisation et en relation avec un référentiel central de cas d'utilisation sont décrits dans l'IEC 62559-1. Cette première édition annule et remplace l'IEC PAS 62559:2008 parue avec l'EPRI. Le contenu principal des PAS précédentes est transféré vers la nouvelle IEC 62559-4.

Odločitveni postopki - 2. del: Opredelitev odločitvenih postopkov s seznamom zahtev in pripadajočih uporabnikov (IEC 62559-2:2015)

Ta del standarda IEC 62559 »Odločitveni postopki« določa strukture odločitvenih postopkov, seznam zahtev in pripadajočih uporabnikov ter odnose med njimi. V tem dokumentu je standardizirani vzorec za opis postopkov določen za različne potrebe, kot je uporaba v organizacijah za standardizacijo za razvoj standardov ali v okviru projekta za razvoj sistema. Ta dokument je bil razvit za splošno uporabo na različnih področjih in v različnih sistemih. V tem dokumentu je kot primer uporabljen energetski sistem/pametno omrežje, saj je bilo to eno prvih področjih uporabe za ta odločitveni postopek, vendar je to splošno predlogo mogoče uporabiti tudi na drugih področjih uporabe, ki se razlikujejo od energetskih sistemov (npr. pametni dom ali elektro-mobilnost). Motivacija, osnovne informacije o primerih uporabe, priporočila za ravnanje v postopkih in postopki za opis primerov uporabe znotraj standardizacije in v zvezi z osrednjim repozitorijem odločitvenih postopkov so opisani v IEC 62559-1.

General Information

Status
Withdrawn
Publication Date
03-Sep-2015
Withdrawal Date
03-Jun-2018
Current Stage
6060 - Document made available - Publishing
Start Date
19-Jun-2015
Completion Date
19-Jun-2015

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62559-2:2015
01-september-2015
2GORþLWYHQLSRVWRSNLGHO2SUHGHOLWHYRGORþLWYHQLKSRVWRSNRYVVH]QDPRP
]DKWHYLQSULSDGDMRþLKXSRUDEQLNRY ,(&
Use case methodology - Part 2: Definition of use case template, actor list and
requirement list

Anwendungsfallmethodik - Teil 2: Definition der Anwendungsfallvorlage, Akteurliste und

der Anforderungsliste

Méthodologie des cas d'utilisation - Partie 2: Définition du formulaire type de modèle de

cas d'utilisation, de la liste d'acteurs et de la liste d'exigences
Ta slovenski standard je istoveten z: EN 62559-2:2015
ICS:
29.020 Elektrotehnika na splošno Electrical engineering in
general
SIST EN 62559-2:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD EN 62559-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2015
ICS 29.020
English Version
Use case methodology - Part 2: Definition of the template for use
cases, actor list and requirements list
(IEC 62559-2:2015)

Méthodologie des cas d'utilisation - Partie 2: Définition du Anwendungsfallmethodik - Teil 2: Definition der

formulaire type de modèle de cas d'utilisation, de la liste Anwendungsfallvorlage, Akteurliste und der

d'acteurs et de la liste d'exigences Anforderungsliste
(IEC 62559-2:2015) (IEC 62559-2:2015)

This European Standard was approved by CENELEC on 2015-06-04. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62559-2:2015 E
---------------------- Page: 2 ----------------------
EN 62559-2:2015
European foreword

The text of document 8/1389/FDIS, future edition 1 of IEC 62559-2, prepared by IEC TC 8, "Systems

aspects for electrical energy supply" was submitted to the IEC-CENELEC parallel vote and approved by

CENELEC as EN 62559-2:2015.
The following dates are fixed:
(dop) 2016-03-04
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-06-04
standards conflicting with the
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent

rights.
Endorsement notice

The text of the International Standard IEC 62559-2:2015 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 61850 (Series) NOTE Harmonized as EN 61850 (Series).
IEC 61968-1 NOTE Harmonized as EN 61968-1.
IEC 61968-11 NOTE Harmonized as EN 61968-11.
IEC 61968-100:2013 NOTE Harmonized as EN 61968-100:2013.
IEC 61970-301 NOTE Harmonized as EN 61970-301.
IEC 62056 (Series) NOTE Harmonized as EN 62056 (Series).
IEC 62325-301 NOTE Harmonized as EN 62325-301.
IEC 62507-1:2010 NOTE Harmonized as EN 62507-1:2011.
---------------------- Page: 3 ----------------------
EN 62559-2:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60870-5-10x Telecontrol equipment and systems -- Part EN 60870-5-10x series
5: Transmission protocols
IEC 61850 series Communication networks and systems for EN 61850 series
power utility automation -- Part 3: General
requirements
IEC 61968-1 - Application integration at electric utilities - EN 61968-1 -
System interfaces for distribution
management -- Part 1: Interface architecture
and general requirements
IEC 61968-11 - Application integration at electric utilities - EN 61968-11 -
System interfaces for distribution
management -- Part 11: Common
information model (CIM) extensions for
distribution

IEC 61968-100 2013 Application integration at electric utilities - EN 61968-100 2013

System interfaces for distribution
management -- Part 100: Implementation
profiles
IEC 61970-301 - Energy management system application EN 61970-301 -
program interface (EMS-API) - Part 301:
Common information model (CIM) base
IEC 62056 series Electricity metering - Data exchange for EN 62056 series
meter reading, tariff and load control -- Part
47: COSEM transport layers for IPv4
networks
IEC 62325-301 - Framework for energy market EN 62325-301 -
communications -- Part 301: Common
Information Model (CIM) extensions for
markets
IEC 62507-1 2010 Identification systems enabling EN 62507-1 2011
unambiguous information interchange -
Requirements -- Part 1: Principles and
methods
---------------------- Page: 4 ----------------------
IEC 62559-2
Edition 1.0 2015-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Use case methodology –

Part 2: Definition of the templates for use cases, actor list and requirements list

Méthodologie des cas d'utilisation –

Partie 2: Définition du formulaire type de modèle de cas d'utilisation, de la liste

d'acteurs et de la liste d'exigences
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020 ISBN 978-2-8322-2656-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
– 2 – IEC 62559-2:2015 © IEC 2015
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 8

2 Normative references ....................................................................................................... 8

3 Terms, definitions and abbreviations ................................................................................ 8

4 Definition of a use case template ................................................................................... 12

4.1 Overview ............................................................................................................... 12

4.1.1 General ......................................................................................................... 12

4.1.2 Short template version and use case overview table ....................................... 13

4.1.3 Actor list and requirements list ....................................................................... 14

4.1.4 Use case repository ....................................................................................... 14

4.2 Use case template ................................................................................................ 14

5 Explanation of fields of the use case template ................................................................ 17

6 Definition of an actor list ................................................................................................ 29

7 Definition of a list for requirements ................................................................................. 30

Annex A (informative) Examples of actors ............................................................................ 34

Annex B (informative) Example of a use case based on the suggested template (short

and extended version) .................................................................................................... 36

B.1 Short version of the use case "Locate and isolate fault and restore system

(FLISR Fault location, isolation, system restoration)" ............................................. 36

B.2 Use case overview table of the use case "Locate and isolate fault and restore

system (FLISR Fault location, isolation, system restoration)" ................................. 41

B.3 Detailed version of the use case " Locate and isolate fault and restore system

(FLISR Fault location, isolation, system restauration)" ........................................... 41

Bibliography .......................................................................................................................... 56

Figure 1 – IEC 62559 standard series ...................................................................................... 5

Figure 2 – Overview of the use case template........................................................................ 13

Table A.1 – Example of an actor list ...................................................................................... 34

---------------------- Page: 6 ----------------------
IEC 62559-2:2015 © IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
USE CASE METHODOLOGY –
Part 2: Definition of the templates for use cases,
actor list and requirements list
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). 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. 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 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 IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62559-2 has been prepared by IEC technical committee 8: Systems

aspects for electrical energy supply.

This first edition cancels and replaces IEC PAS 62559:2008 which had been published together

with EPRI. Main content of the former PAS will be transferred to the new IEC 62559-4.

IEC 62559-1 to IEC 62559-3 are now more related to the application of the use case

methodology in standardisation. In this document, a revised and updated template is provided.

---------------------- Page: 7 ----------------------
– 4 – IEC 62559-2:2015 © IEC 2015
The text of this standard is based on the following documents:
FDIS Report on voting
8/1389/FDIS 8/1395/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.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62559 series, published under the general title Use case

methodology, can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until the

stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to

the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 8 ----------------------
IEC 62559-2:2015 © IEC 2015 – 5 –
INTRODUCTION
For complex systems, the use case methodology supports a common understanding of

functionalities, actors and processes across different technical committees or even different

organizations. Developed as software engineering tool, the methodology can be used to

support the development of standards as it facilitates the analysis of requirements in relation to

new or existing standards. Further arguments for the use case methodology and background

information are available in IEC 62559-1.

Figure 1 provides an overview of the intended first parts of the IEC 62559, mainly describing

the relation between IEC 62559-2 and IEC 62559-3.
IEC 62559 − Use case methodology
Background: IEC 62559−1
Textual
use case
description
IEC 62559−2
Template
Word
UML use case
processing
IEC 62559−future
file / template
extension
UML profile definition
Web-
browser
2 possible routes
On-line Textual
editing Import / UML modelling tool
Export
XML
IEC 62559-3
Use case
repository
(Database)
Processes described in IEC 62559−1
IEC
Figure 1 – IEC 62559 standard series
IEC 62559-1 – Concept and processes in standardization

IEC 62559-1 is the basis for a common use case repository in order to gather use cases within

IEC on a common collaborative platform. This repository will also be used to organize a

harmonization of use cases in order to provide broadly accepted generic use cases as basis for

the further standardization work. It describes processes and provides basics for the use case

methodology like terms or use case types.

IEC 62559-2 – Definition of the templates for use cases, actor list and requirements list

IEC 62559-2 defines the structure of a use case template, an actor list and a list for

requirements. The document is mainly based on the previous IEC PAS 62559 specification and

shall be read together with IEC 62559-1.
---------------------- Page: 9 ----------------------
– 6 – IEC 62559-2:2015 © IEC 2015

IEC 62559-3 – Definition of use case template artefacts into an XML serialized format

Based on IEC 62559-2, IEC 62559-3 defines the required core concepts and their serialization

into an XML format of a use case template, an actor list and a list for detailed requirements.

The XML format is used to transfer the content of the template to other engineering systems

(e.g. UML modelling tools). These documents are developed using the energy system and

Smart Grids as examples, but they are general enough to be transferred to other domains and

systems. It is intended to develop a UML profile definition based on this part in the future.

Motivation

The International Standard IEC 62559 "Use case methodology" is needed to fulfill the SG3

decision 7 made by the SMB at its February 2010 meeting (SMB/4204/DL, Decision 137/10)

requesting the urgent delivery of a generic use case repository for all Smart Grid applications.

Nevertheless, the use case methodology described in this document is intended for a broader

application within standardization exceeding Smart Grid systems.

More and more complex systems such as Smart Grids or Smart Cities are raising the question

of managing system level requirements, which have to be fed by many domains of expertise (in

standardization related to different Technical Committees (TCs)), and which have to be broken

down further and shared by many TCs in charge of specifying standards to support these

system level functions.

One way to handle this transversality efficiently is to set some common methods and terms.

The use case methodology is the current state of art and supports further engineering

activities.

The use case methodology offers a unique way for sharing ideas and requirements of new use

cases or business cases between many experts/TC's with different backgrounds: e.g. domain

experts with knowledge about energy systems or business processes on one hand and system-

/IT-experts defining exchanged information and communication on the other hand. In the

requirement development process, domain experts are providing general ideas and functional

requirements. The main goal is for system experts to detail down these use cases to a level

they can be used to specify interfaces, dedicated functionality, data and service model

exchange. However, safety- or EMC-experts (as examples) may also make use of the
described use cases, their terminology and identified requirements.

However, the starting point is to set up a frame for consistency within IEC helping IEC

members to provide use cases in a consistent manner – this standard shall serve as basis for

use case repositories in order to gather, administrate, maintain, and evaluate use cases.

Within IEC, a use case repository shall be used as common collaborative platform for use case

elaboration and to organize a harmonization of use cases in order to provide broadly accepted

generic use cases as basis for further standardization work.

But the use case template defined in this document may serve not only for the development of

standards, but also – as it was the original purpose of the previous IEC PAS 62559:2008 (refer

to IEC 62559-4) – as a helpful means for the realization of projects within the area of complex

systems. Also other applications, which need the benefits of a structured requirements

development and formalized description of functionality, may make use of the suggested

template.

The use case methodology has to be seen as a process which starts with the definition of

business ideas, goals and requirements, detailing these in use case descriptions. This

information can be used as a basis to identify/link reference architectures describing the types

of components used, and going further down to an analysis for the further standardization

process.
---------------------- Page: 10 ----------------------
IEC 62559-2:2015 © IEC 2015 – 7 –

Further developments regarding the use case template are expected. These developments are

mainly related to information, which is required in the use case description for further analysis,

and which can be mapped to other information (e.g. to a reference architecture, IT security

methods, standards and data models). Partly this is considered in the suggested template of

this standard. Further relations will be described separately as they are still under development

and they might be considered for the further development of the IEC use case repository.

---------------------- Page: 11 ----------------------
– 8 – IEC 62559-2:2015 © IEC 2015
USE CASE METHODOLOGY –
Part 2: Definition of the templates for use cases,
actor list and requirements list
1 Scope

This part of IEC 62559 “Use case methodology” defines the structure of a use case template,

template lists for actors and requirements, as well as their relation to each other. In this

document, a standardized template for the description of use cases is defined for various

purposes like the use in standardization organizations for standards development or within

development projects for system development.

This document was developed for general application in various domains and systems. The

energy system/smart grid is used as example in this document as it was one of the first usage

areas for this use case template, but this general template can be applied in other usage areas

different from energy systems as well (e.g. smart home or electro-mobility).

The motivation, background information on use cases, recommendations for the handling of

use cases and the processes for the description of use cases inside standardization and in

relation to a central use case repository is described in IEC 62559-1.
2 Normative references
Void.
3 Terms, definitions and abbreviations

For the purposes of this document, the terms and definitions given in IEC 62559-1and the

following apply.
3.1
use case

specification of a set of actions performed by a system, which yields an observable result that

is, typically, of value for one or more actors or other stakeholders of the system

[SOURCE: ISO/IEC 19505-2:2012, 16.3.6]
3.2
actor
entity that communicates and interacts

Note 1 to entry: These actors can include people, software applications, systems, databases, and even the power

system itself.
[SOURCE: Based on IEC PAS 62559:2008]
3.3
role
role played by an actor in interaction with the system under discussion

Note 1 to entry: Alternative: A role represents the external intended behavior of a party. A party cannot share a

role.
---------------------- Page: 12 ----------------------
IEC 62559-2:2015 © IEC 2015 – 9 –

EXAMPLES A legally defined market participant (e.g. grid operator, customer), a generic role which represents a

bundle of possible roles (e.g. flexibility operator) or an artificially defined body needed for generic process and use

case descriptions.

Note 2 to entry: Legally or generically defined external actors may be named and identified by their roles.

[SOURCE: SG-CG/M490/E:2012-12, definition 3.17]
3.4
use case template

a form which allows the structured description of a use case in predefined fields

[SOURCE: SG-CG/M490/E:2012-12, definition 3.2]
3.5
repository

here used for a place where information like use cases can be stored, usually as a database

(refer to use case repository)
[SOURCE: based on SG-CG/M490/E:2012-12, definition 3.12]
3.6
use case repository
UCR

database, based on a given use case template, for editing, maintenance and administration of

use cases, actors and requirements including their interrelations

Note 1 to entry: The UCR is designed as collaborative platform for standardization bodies, inter alia equipped with

export functionalities as UML model or text template.
[SOURCE: based on SG-CG/M490/E:2012-12, definition 3.13]
3.7
system

set of interrelated elements considered in a defined context as a whole and separated from

their environment

Note 1 to entry: A system is generally defined with the view of achieving a given objective, for example by

performing a definite function.
[SOURCE: IEC 60050-351:2013, 351-42-08]
3.8
area

major usage area for use cases supporting of grouping, filtering and administration of use

cases within a common use cases database
EXAMPLE Energy Systems/Smart Grid, Smart Home.

Note 1 to entry: Might be used in combination with domain which further divides an area.

3.9
domain

area of knowledge or activity characterized by a set of concepts and terminology understood by

the practitioners in that area

EXAMPLE Taken from Smart Grid/energy system area: Generation, transmission, distribution, customer.

Note 1 to entry: Major area of similar technologies and organisational background, for the energy system some

domains are suggested in this document as examples thoughout this document.
[SOURCE: ISO/IEC 19501:2005: Unified Modeling Language Specification]
---------------------- Page: 13 ----------------------
– 10 – IEC 62559-2:2015 © IEC 2015
3.10
group/grouping
group of actors in order to organize an actor list

EXAMPLE Smart metering actors like meter operator (role), smart meter gateway (devices).

Note 1 to entry: Might be used in combination with domain and area.
3.11
zones
automation levels, classified in combination with a reference architecture
EXAMPLE SGAM.
3.12
smart grid architecture model
SGAM
suggested reference architecture for the smart grid area
[SOURCE: SG-CG/M490/C:2012-12]
3.13
semantic model

structured description of the semantics of a set of information, e.g. using some information

modeling language like UML

Note 1 to entry: Many different semantic models are expressions of the same semantics. Even with one language,

like UML, there are lots of ways to represent the structure of the same kind of information.

Note 2 to entry: Semantic modeling only represents information content – it does not include formatting/encoding

(syntactical) specifications. There are typically many formatting/encoding options for a given semantic model.

[SOURCE: based on SGAC Semantic Framework, draft version]
3.14
canonical data model
CDM

semantic model chosen as the single unifying model that will govern the semantic definition of

a collection of data specifications, such as the specifications for message payload content for a

collection of interfaces
[SOURCE: based on SGAC Semantic Framework, draft version]
3.15
namespace

(standardized) space of names qualifying pieces of information, including information about

their name detailed semantic, and usually their attached model (e.g. canonical data model)

3.16
name of information

unique ID which identifies the selected information to be exchanged in the context of the use

case and its step-by-step analysis and which should be related to the namespace
3.17
by-default namespace
namespace where “name of information” is by default originated from
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IEC 62559-2:2015 © IEC 2015 – 11 –
3.18
scenario
a possible sequence of interactions
[SOURCE: SG-CG/M490/E:2012-12, definition 3.10]
3.19
activity step

elementary step within a scenario representing the finest-grained description level of

interactions in the use case
[SOURCE: SG-CG/M490/E:2012-12, definition 3.11]
3.20
conceptual description

cluster of use cases which can be described in an overall description providing an introduction

and summarizing the main ideas and the relation
...

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