ISO/IEC 19086-2:2018/Amd 1:2023

Cloud computing — Service level agreement (SLA) framework — Part 2: Metric model — Amendment 1

Informatique en nuage — Cadre de travail de l'accord du niveau de service — Partie 2: Modèle métrique — Amendement 1

General Information

• Status: Published
• Publication Date: 26-Jan-2023
• ICS: 35.210 - Cloud computing
• Technical Committee: ISO/IEC JTC 1/SC 38 - Cloud computing and distributed platforms
• Drafting Committee: ISO/IEC JTC 1/SC 38/WG 3 - Cloud Computing Fundamentals (CCF)
• Current Stage: 6060 - International Standard published
• Start Date: 27-Jan-2023
• Due Date: 21-Mar-2023
• Completion Date: 27-Jan-2023

Relations

• Amends: ISO/IEC 19086-2:2018 - Cloud computing — Service level agreement (SLA) framework — Part 2: Metric model
• Effective Date: 25-Dec-2021

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 19086-2
First edition
2018-12
AMENDMENT 1
2023-01
Cloud computing — Service level
agreement (SLA) framework —
Part 2:
Metric model
AMENDMENT 1
Reference number
ISO/IEC 19086-2:2018/Amd. 1:2023(E)
© ISO/IEC 2023

---------------------- Page: 1 ----------------------
ISO/IEC 19086-2:2018/Amd. 1:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 19086-2:2018/Amd. 1:2023(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO 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. ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance
are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria
needed for the different types of document should be noted. This document was drafted in
accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives or
www.iec.ch/members_experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 38, Cloud computing and distributed platforms.
A list of all parts in the ISO/IEC 19086 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
iii
© ISO/IEC 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/IEC 19086-2:2018/Amd. 1:2023(E)
Cloud computing — Service level agreement (SLA)
framework —
Part 2:
Metric model
AMENDMENT 1

8.1.5, second paragraph
Add a new second paragraph between the existing first and second paragraphs:
Any metric element (Metric, Expression, Rule, Parameter) may be used by more than one metric if it is
defined using a unique id within the set of metrics it is used in. Any metric elements (Metric, Expression,
Rule, Parameter) can reference other elements. Element shall be referenced by their ids. Within the
context of the referencing element, ids used shall be unique.
Table 1
Replace Table 1 with the following table:
Table 1 — Metric details
Class Name Metric
Description Information about the metric
Attribute Type Multiplicity Definition
-or-
Element
id string 1 an identifier for the metric, unique within
the context of usage of the metric
description string 0.* a description of the metric that may be pro-
vided for multiple languages.
source string 1 the individual or organization who created
the metric
scale enumeratedList 1 classification of the type of measurement
result when using the metric. The value of
scale shall be “nominal, ordinal, interval, or
ratio”. SLOs shall use either the “interval” or
“ratio” scale. SQOs shall use the “nominal”
or “ordinal” scales.
category string 0.1 a grouping of metrics related to each other
expression Expression 1 The expression of the calculation of the
metric. It shall be written using the appro-
priate id to represent an underlyingMetric,
parameter, or rule.
1
© ISO/IEC 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/IEC 19086-2:2018/Amd. 1:2023(E)
TTabablele 1 1 ((ccoonnttiinnueuedd))
parameter Parameter 0.* a parameter is used to define a constant
(at runtime) needed in a metric expression
or rule. A parameter’s value is determined
before the metric is used in a measurement.
A parameter may be used by more than
one metric if it is defined using a unique id
within the set of metrics it is used in.
note string 0.* additional information about the metric
and how to use it.
rule Rule 0.* a rule is used to constrain a metric and indi-
cate possible method(s) for measurement.
underlyingMetric Metric 0.* a metr
...