ISO/IEC 26702:2007

Systems engineering — Application and management of the systems engineering process

ISO/IEC 26702:2007 defines the interdisciplinary tasks which are required throughout a system's life cycle to transform customer needs, requirements and constraints into a system solution. In addition, it specifies the requirements for the systems engineering process and its application throughout the product life cycle. ISO/IEC 26702:2007 focuses on engineering activities necessary to guide product development, while ensuring that the product is properly designed to make it affordable to produce, own, operate, maintain and eventually dispose of without undue risk to health or the environment.

Ingénierie des systèmes — Application et management du processus d'ingénierie des systèmes

General Information

• Status: Withdrawn
• Publication Date: 09-Jul-2007
• Withdrawal Date: 09-Jul-2007
• ICS: 35.080 - Software
• Technical Committee: ISO/IEC JTC 1/SC 7 - Software and systems engineering
• Drafting Committee: ISO/IEC JTC 1/SC 7 - Software and systems engineering
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 17-May-2016

Relations

• Revised: ISO/IEC/IEEE 24748-4:2016 - Systems and software engineering — Life cycle management — Part 4: Systems engineering planning
• Effective Date: 10-Jul-2010

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 26702
IEEE
Std 1220-2005
First edition
2007-07-15

Systems engineering — Application and
management of the systems engineering
process
Ingénierie des systèmes —- Application et management du processus
d'ingénierie des systèmes



Reference number
ISO/IEC 26702:2007(E)

IEEE
Std 1220-2005

---------------------- Page: 1 ----------------------
ISO/IEC 26702:2007(E)
IEEE Std 1220-2005
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™IEEE Std 1220-2005
(Revision of
IEEE Std 1220-1998)
TM
1220
IEEE Standard for Application and
Management of the Systems
Engineering Process
IEEE Computer Society
Sponsored by the
Software and Systems Engineering Standards Committee
 9 September 2005
Print: SH95334
3 Park Avenue, New York, NY10016-5997, USA
PDF: SS95334

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™
IEEE Std 1220 -2005
(Revision of
IEEE Std 1220-1998)
IEEE Standard for Application and
Management of the Systems
Engineering Process
Sponsor
Software and Systems Engineering Standards Committee
of the
IEEE Computer Society
Approved 20 March 2005
IEEE-SA Standards Board
Abstract: The interdisciplinary tasks, which are required throughout a system’s life cycle to
transform customer needs, requirements, and constraints into a system solution, are defined. In
addition, the requirements for the systems engineering process and its application throughout the
product life cycle are specified. The focus of this standard is on engineering activities necessary to
guide product development while ensuring that the product is properly designed to make it
affordable to produce, own, operate, maintain, and eventually to dispose of, without undue risk to
health or the environment.
Keywords: acquire, analysis, architecture, building block, design, development, component,
hardware, interface, life cycle processes, software, supplier, synthesis, system, system life cycle,
systems engineering, technical management, validation, verification
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2005 by the Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 9 September 2005. Printed in the United States of America.
IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of Electrical and Electronics
Engineers, Incorporated.
PMBOK is a registered mark of Project Management, Inc.
Print: ISBN 0-7381-4691-9  SH95334
PDF: ISBN 0-7381-4692-7  SS95334
No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior
written permission of the publisher.

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ISO/IEC 26702:2007(E)
IEEE Std 1220-2005
International Standard ISO/IEC 26702:2007(E)
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. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. 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.
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.
ISO/IEC 26702 was prepared by IEEE (as IEEE Std 1220-2005) and was adopted, under a special “fast-track
procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 7,
Software and systems engineering, in parallel with its approval by national bodies of ISO and IEC. The IEEE
Computer Society will cooperate in the maintenance of this International Standard as a Category A liaison to
SC 7.


International Organization for Standardization/International Electrotechnical Commission
Case postale 56 • CH-1211 Genève 20 • Switzerland

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Introduction
This introduction is not part of IEEE Std 1220-2005, IEEE Standard for Application and Management of the Systems
Engineering Process.
History
IEEE Std 1220 was initially published in January 1995 as a trial-use standard. After the two-year trial-use
period, the document was revised and balloted in 1998 for full publication in 1999.
The International Organization for Standardization (ISO) and the International Electrotechnical Commission
(IEC) formed a joint body to collaborate in fields of mutual interest for worldwide standardization efforts.
ISO/IEC established a joint technical committee for international standards development, ISO/IEC JTC 1,
Information Technology. In parallel with IEEE Std 1220 developments, ISO/IEC JTC 1, Subcommittee 7
a
(SC7), Software and Systems Engineering, began generation of ISO/IEC 15288:2002 [B3]. ISO/IEC
15288:2002 provides a framework based on a broad set of processes that an organization or project may
employ to perform or manage the stages of a system’s life cycle. ISO/IEC 15288:2002 supports the full life
cycle of systems—from conception through retirement—as well as the acquisition and supply of systems.
It is the intent of ISO/IEC 15288:2002 to establish standard life cycle process descriptions suitable for most
man-made systems. As such, the processes and terminology of the standard are defined at an appropriately
high level of abstraction. ISO/IEC 15288:2002 does not prescribe, nor provide, detailed system engineering
process definitions or methods and procedures to address detail process requirements derived from the
application of this standard. ISO/IEC TR 19760:2003 [B4], the companion guide for ISO/IEC 15288:2002,
lists several standards, including IEEE Std 1220-1998, that cover engineering disciplines at a lower-tier
level and are suitable for implementation with ISO/IEC 15288:2002.
This revision of IEEE Std 1220-1998 is a result of an ongoing harmonization of the standards of the IEEE
Computer Society’s Software and Systems Engineering Standards Committee (S2ESC) and the
corresponding international standards committee, ISO/IEC JTC1/SC7. This initial alignment of IEEE Std
1220-1998 with ISO/IEC 15288:2002 was developed in cooperation with ISO/IEC JTC1/SC7 and included
participation of the International Council on Systems Engineering (INCOSE). The next step towards
harmonization of these two standards would be the submission of IEEE Std 1220-2005 for a “fast-track”
ballot with ISO/IEC JTC1/SC7 followed by a coordinated revision.
The IEEE Computer Society has embraced the top-level framework provided by ISO/IEC 15288:2002 and
™
has adopted ISO/IEC 15288 as IEEE Std 15288
-2004. The IEEE Computer Society offered to align IEEE
Std 1220-1998 with ISO/IEC 15288:2002 to facilitate the joint use of the two standards to manage system
engineering efforts. The purpose of this revision of IEEE Std 1220-1998 is to identify key similarities and
differences in the two standards and demonstrate how they can be used together while minimizing the
impact of ISO/IEC 15288:2002 on current IEEE Std 1220-1998 users who may not employ ISO/IEC
15288:2002.
The key differences between this version of the standard, IEEE Std 1220-2005, and the 1998 version are as
follows:
a) Inclusion of explanations regarding key differences between IEEE Std 1220-1998 and ISO/IEC
15288:2002 in areas such as terminology and structure
b) Minimal adjustments to some IEEE Std 1220-1998 terms and definitions for alignment with ISO/
IEC publication requirements
c) Clarification of the distinction between requirements and recommendations of the standard
a
The numbers in brackets correspond to those of the bibliography in Annex D.
Copyright © 2005 IEEE. All rights reserved. iii

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d) Update of the conformance clause for alignment with IEEE standards style and rules
Most of the IEEE Std 1220-1998 content remains the same in this version. Explanations to facilitate use of
IEEE Std 1220 with ISO/IEC 15288:2002 are contained in a new Annex C.
Purpose
This standard defines the requirements for an enterprise’s total technical effort related to development of
products (including computers and software) and processes that will provide life cycle support (sustain and
evolve) for the products. It prescribes an integrated technical approach to engineering a system and requires
the application and management of the systems engineering process throughout a product life cycle. The
systems engineering process is applied recursively to the development or incremental improvement of a
product to satisfy market requirements and to simultaneously provide related life cycle processes for product
development, manufacturing, test, distribution, operation, support, training, and disposal.
The concept of systems engineering embodied in this standard provides an approach for product
development in a system context. It is not meant to describe what an organizational entity called systems
engineering does or a job position for which a systems engineer is responsible. Rather, it encompasses what
all organizational entities and all enterprise and project personnel must accomplish to produce a quality,
competitive product that will be marketable, will provide an acceptable return on investment to the
enterprise, will achieve stakeholder satisfaction, and will meet public expectations.
The fundamental systems engineering objective is to provide high-quality products and services, with the
correct people and performance features, at an affordable price, and on time. This involves developing,
producing, testing, and supporting an integrated set of products (hardware, software, people, data, facilities,
and material) and processes (services and techniques) that is acceptable to stakeholders, satisfies enterprise
and external constraints, and considers and defines the processes for developing, producing, testing,
handling, operating, and supporting the products and life cycle processes. This objective is achieved by
simultaneous treatment of product and process content to focus project resources and design decisions for
the establishment of an effective system design. This involves an integrated handling of all elements of a
system, including those related to manufacturing, test, distribution, operations, support, training, and
disposal.
Notice to users
Errata
Errata, if any, for this and all other standards can be accessed at the following URL: http://
standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for
errata periodically.
Interpretations
Current interpretations can be accessed at the following URL: http://standards.ieee.org/reading/ieee/interp/
index.html.
Patents
Attention is called to the possibility that implementation of this standard may require use of subject matter
covered by patent rights. By publication of this standard, no position is taken with respect to the existence or
validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying
iv Copyright © 2005 IEEE. All rights reserved.

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patents or patent applications for which a license may be required to implement an IEEE standard or for
conducting inquiries into the legal validity or scope of those patents that are brought to its attention.
Participants
At the time this standard was completed, the IEEE 1220 Revision Working Group had the following
membership:
Teresa (Terry) Doran, Chair and Editor
Ken Crowder, ISO/IEC JTC1/SC7 Liaison
James Moore, IEEE CS Liaison to ISO/IEC JTC1/SC7
Lorraine Pajerek, INCOSE Organizational Representative
Werner Altmann Mark Henley Ken Ptack
Jim Armstrong Ron Kohl Karen Richter
Stuart Arnold Jerome (Jerry) Lake Garry Roedler
Randy Case Jean-Philippe Lerat Robert J. Schaaf
John Clark Elizabeth Lotsu Richard Schmidt
Paul Croll John H. Mee Robert Skalamera
Alain Faisandier Frederick I. Moxley Thomas Starai
Kevin Forsburg John Napier Mark Wilson
Rich Harwell Steve Olson Matthew Young
Robert Peterson
The following members of the individual balloting committee voted on this standard. Balloters may have
voted for approval, disapproval, or abstention.
Edward Bartlett Clint Early, Jr. Jacques Mathot
Richard Biehl Christof Ebert James Moore
Stephen Blanchette William Eventoff Dennis Nickle
Juris Borzovs John Fendrich Lou Pinto
Bruce Bullock Yaacov Fenster Gerald Radack
Joseph Butchko Roger Fujii Annette Reilly
Dino Butorac Jean-Denis Gorin David Rockwell
Keith Chow Lewis Gray Garry Roedler
Antonio M. Cicu Michael Grimley Helmut Sandmayr
Mark Heinrich
Paul Croll James Sanders
Gregory Daich John Horch Robert J. Schaaf
Geoffrey Darnton Peeya Iwagoshi Carl Singer
Taz Daughtrey Thomas M. Kurihara Mitchell Smith
Maulik Dave Joerg Kampmann Luca Spotorno
Perry DeWeese Piotr Karocki Thomas Starai
Dr. Guru Dutt Dhingra Ron Kenett David Walden
Teresa (Terry) Doran Carol Long John Walz
Einar Dragstedt Yuhai Ma Oren Yuen
Scott Duncan Joseph Marshall Li Zhang
The following organizational representative voted on this standard:
Lorraine Pajerek, INCOSE
In addition, this standard was coordinated with the following organizations:
GEIA NDIA
Copyright © 2005 IEEE. All rights reserved. v

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When the IEEE-SA Standards Board approved this standard on 20 March 2005, it had the following
membership:
Steve M. Mills, Chair
Richard H. Hulett, Vice Chair
Don Wright, Past Chair
Judith Gorman, Secretary
Mark D. Bowman Raymond Hapeman Glenn Parsons
Dennis B. Brophy Ronald C. Petersen
William B. Hopf
Joseph Bruder Gary S. Robinson
Lowell G. Johnson
Richard Cox Frank Stone
Herman Koch
Bob Davis Malcolm V. Thaden
Joseph L. Koepfinger*
Julian Forster* Richard L. Townsend
David J. Law
Joe D. Watson
Joanna N. Guenin
Daleep C. Mohla
Mark S. Halpin Howard L. Wolfman
Paul Nikolich
T. W. Olsen
*Member Emeritus
Also included are the following nonvoting IEEE-SA Standards Board liaisons:
Satish K. Aggarwal, NRC Representative
Richard DeBlasio, DOE Representative
Alan Cookson, NIST Representative
Michelle D. Turner
IEEE Standards Project Editor
vi Copyright © 2005 IEEE. All rights reserved.

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Contents
1. Overview. 1
1.1 Scope. 1
1.2 Purpose. 2
1.3 How to use this standard. 2
1.4 Organization of this standard. 6
2. Normative references. 6
3. Definitions and acronyms . 7
3.1 Definitions. 7
3.2 Acronyms. 10
4. General requirements. 10
4.1 Systems engineering process . 11
4.2 Policies and procedures for systems engineering . 11
4.3 Planning the technical effort . 12
4.4 Development strategies. 13
4.5 Modeling and prototyping. 13
4.6 Integrated repository . 13
4.7 Integrated data package. 14
4.8 Specification tree . 16
4.9 Drawing tree. 16
4.10 System breakdown structure. 17
4.11 Integration of the systems engineering effort . 17
4.12 Technical reviews . 19
4.13 Quality management . 19
4.14 Product and process improvement.19
5. Application of systems engineering throughout the system life cycle . 20
5.1 System definition stage. 21
5.2 Preliminary design stage. 25
5.3 Detailed design stage . 29
5.4 Fabrication, assembly, integration, and test stage. 32
5.5 Production and support stages . 34
5.6 Simultaneous engineering of life cycle processes . 36
6. The systems engineering process . 37
6.1 Requirements analysis . 37
6.2 Requirements validation . 43
6.3 Functional analysis. 45
6.4 Functional verification. 48
6.5 Synthesis . 49
6.6 Design verification. 53
6.7 Systems analysis . 57
6.8 Control . 61
Copyright © 2005 IEEE. All rights reserved. vii

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Annex A (informative) The role of systems engineering within an enterprise. 67
Annex B (informative) The systems engineering management plan. 71
Annex C (informative) Use of IEEE Std 1220 in an ISO/IEC 15288:2002 context. 79
Annex D (informative) Bibliography. 87
viii Copyright © 2005 IEEE. All rights reserved.

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IEEE Standard for Application and
Management of the Systems
Engineering Process
1. Overview
1.1 Scope
This standard defines the interdisciplinary tasks that are required throughout a system’s life cycle to
transform stakeholder needs, requirements, and constraints into a system solution. This standard is intended
to guide the development of systems for commercial, government, military, and space applications. The
information applies to a project within an enterprise that is responsible for developing a product design and
establishing the life cycle infrastructure needed to provide for life cycle sustainment.
This standard specifies the requirements for the systems engineering process (SEP) and its application
throughout the product life cycle. It does not attempt to define the implementation of each system life cycle
process, but addresses the issues associated with defining and establishing supportive life cycle processes
early and continuously throughout product development. In addition, the standard does not address the many
cultural or quality variables that should be considered for successful product development. The standard
focuses on the engineering activities necessary to guide product development while ensuring that the
product is properly designed to make it affordable to produce, own, operate, maintain, and eventually to
dispose of, without undue risk to health or the environment.
The requirements of this standard are applicable to new products as well as incremental enhancements to
existing products. It applies to one-of-a-kind products, such as a satellite, as well as products that are mass-
produced for the consumer marketplace. The requirements of this standard should be selectively applied for
each specific system-development project. The role of systems engineering within the enterprise
environment is described in Annex A.
The content of this standard describes an integrated approach to product development, which represents the
total technical effort for the following:
a) Understanding the environments and the related conditions in whic
...