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International
Standard
ISO 18676
Second edition
Space systems — Requirements and
2024-07
guidelines for the management of
systems engineering
Systèmes spatiaux — Exigences et lignes directrices pour le
management de l'ingénierie système
Reference number
© ISO 2024
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Positioning of systems engineering management . 3
4.1 General .3
4.2 Need for systems engineering management .3
4.3 Systems engineering .3
4.4 Systems engineering management .4
4.5 Systems engineering management relative to the mission/programme/project .4
5 Management of the systems engineering activities . 5
5.1 General .5
5.2 Planning .5
5.3 Assessment .6
5.4 Trade-offs and decision-making .6
5.5 Control .6
6 Systems engineering management plan (SEMP) . 7
7 Systems engineering management activities . 7
7.1 Management of stakeholder requirements analysis .7
7.2 Management of system requirements analysis .7
7.3 Management of architectural design .8
7.4 Management of detailed design .8
7.5 Management of assembly, integration and verification .8
7.6 Management of validation .8
8 Work breakdown structures (WBS) . 9
9 Phasing, scheduling and recursivity . 10
10 Budgeting and resource planning .10
11 Status reporting and assessment .10
11.1 General .10
11.2 Cost assessments .10
11.3 Scheduling assessments .11
11.4 Performance assessments .11
11.5 Risk assessments .11
12 Reviews, audits and control gates .12
12.1 General . 12
12.2 Review . 12
12.3 Review list . 13
12.4 Audits .14
12.5 Control gates.14
13 Interfaces management with SE . 14
13.1 General .14
13.2 Acquisition and supply interface management . 15
13.3 Implementation interface management . 15
Bibliography .16
iii
Foreword
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of ISO 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).
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This document was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 14, Space systems and operations.
This second edition cancels and replaces the first edition (ISO 18676:2017), which has been technically
revised.
The main changes are as follows:
— updated the normative references in Clause 2;
— updated the terms and definitions references in Clause 3.
— changed some recommendations to requirements in Clauses 5 to 13.
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.
iv
Introduction
There is general consensus that to accomplish space programme/project requirements, it is mandatory
to manage the systems engineering activities. The main role of systems engineering management is to
ensure system performance conforms with expressed need and to control the technical risks involved in
development. Also, cost and schedule parameters are taken into account in space systems engineering in the
search of optimal performance.
Thus, this document provides requirements and recommendations for managing the systems engineering
activities related to planning, assessment and control of space programmes/projects.
These requirements and recommendations are intended to help customers and space system organizations
to establish management requirements for systems engineering activities and help the organization to
construct the elements of the systems engineering management plan (SEMP).
Given the need for systems engineering management, the overall systems engineering activities can be
divided into two types:
— systems engineering management activities related to programme management which comprise
planning, assessing, controlling, trade-off studies and decision-making;
— technical activities linked to the technical processes (stakeholder requirements analysis, system
requirements analysis, system architectural design, system detailed design and assembly, integration,
and verification and validation) applied to the system.
Therefore, systems engineering management reinforces the technical viewpoint within programme
management.
In this document, a set of leading indicators are suggested as measures for evaluating the effectiveness of each
space systems engineering activity. L
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