Systems and software engineering — Life cycle management — Part 7: Application of systems engineering on defence programs

This document establishes the requirements for systems engineering activities to be performed on projects of defence agencies, including the United States (US) Department of Defense (DoD), across the entire system life cycle. This document implements ISO/IEC/IEEE 15288 for use by defence agencies in acquiring systems or systems engineering support, including the planning, acquisition, operation, modification, and sustainment of defence systems. It provides the foundation for systems engineering within the context of ISO/IEC/IEEE 15288. This document provides detailed requirements for the application of the life cycle processes, activities, and tasks of ISO/IEC/IEEE 15288 for use on any defence system and includes the effective integration of agreement processes, technical processes, technical management processes, organizational project enabling processes, and essential specialty engineering requirements. While primarily supporting the acquirer-supplier agreement mode, this document also can be used to support the other modes: use by organizations, projects, and process assessors.

Ingénierie des systèmes et du logiciel — Gestion du cycle de vie — Partie 7: Application de l'ingénierie des systèmes aux programmes de défense

General Information

Status
Published
Publication Date
16-Feb-2026
Current Stage
6060 - International Standard published
Start Date
17-Feb-2026
Due Date
06-Aug-2027
Completion Date
17-Feb-2026

Relations

Effective Date
10-Aug-2024

Overview

ISO/IEC/IEEE 24748-7:2025 defines the application of systems engineering principles specifically tailored for defense programs, including projects governed by the United States Department of Defense (DoD) and other defense agencies globally. This international standard builds upon the general life cycle management framework established in ISO/IEC/IEEE 15288, adapting its requirements to accommodate the unique demands and language of defense acquisition and sustainment processes. It sets out detailed systems engineering requirements for defense system projects spanning planning, acquisition, modification, operation, and sustainment phases throughout the entire system life cycle.

The document ensures consistent application of processes such as agreement, technical, and technical management processes alongside organizational project-enabling activities and specialty engineering disciplines essential for defense systems. It enables acquirers and suppliers to establish clear agreements and technical expectations, fostering effective collaboration and quality assurance in defense system development.

Key Topics

  • Systems Engineering Requirements for Defense: Tailors ISO/IEC/IEEE 15288 life cycle processes for defense applications, emphasizing defense-specific terminology and contracts.
  • Life Cycle Coverage: Comprehensive coverage from initial concept and planning through acquisition, modification, operation, and sustainment.
  • Process Integration: Advanced integration of agreement processes, technical activities, technical management, and organizational project enabling processes.
  • Configuration Management: Detailed baselining concepts including allocated, functional, and product baselines for configuration items.
  • Conformance and Tailoring: Clear criteria for full and tailored conformance to ensure flexible application based on project size and complexity.
  • Defense-Specific Outputs: Defined expected deliverables and attributes critical for defense acquisition and support.
  • Support for Acquirer-Supplier Relationships: Enhances contract data requirements and establishes foundations for delivery performance and innovation within defense contracts.
  • System of Systems (SoS) Considerations: Addressing complex defense architectures requiring interoperability and systems integration.

Applications

ISO/IEC/IEEE 24748-7 serves as an essential tool for:

  • Defense Agencies and DoD Contractors: Guiding systems engineering efforts for defense procurement, ensuring compliance with mandated life cycle requirements.
  • System Developers and Integrators: Applying structured and tailored systems engineering processes in development, integration, and sustainment of defense platforms and subsystems.
  • Project and Program Managers: Managing engineering activities and ensuring lifecycle alignment with defense program objectives and compliance rules.
  • Process Assessors and Auditors: Evaluating the effectiveness and compliance of a defense project’s systems engineering implementation.
  • Specialty Engineering Teams: Applying integrated specialty engineering activities such as safety, reliability, and security within defense systems.
  • Acquirer-Supplier Negotiations: Structuring contract data and technical requirements to facilitate clear agreement and performance metrics.

By leveraging ISO/IEC/IEEE 24748-7, defense stakeholders can reduce risk, improve quality, and enhance interoperability at all levels of the system hierarchy, supporting robust defense capability development and sustainment.

Related Standards

To implement ISO/IEC/IEEE 24748-7 proficiently, it is essential to consider its relationship with several key standards:

  • ISO/IEC/IEEE 15288:2023 – The foundational standard on system life cycle processes upon which this part is based.
  • ISO/IEC/IEEE 24765 – Provides standardized systems and software engineering vocabulary to support consistent terminology.
  • DoD Directives and Instructions (DoDD, DoDI, DoDM) – Regulatory documents that govern defense acquisition policies and procedures applicable within US defense programs.
  • IEEE Systems and Software Engineering Standards – A suite of standards that can complement ISO/IEC/IEEE 24748-7 in systems engineering management and technical processes.
  • MODAF and DoDAF – Architecture framework standards (UK Ministry of Defence and US DoD respectively) often referenced for defense program system-of-systems design and interoperability.
  • Configuration Management Standards – For ensuring baseline and configuration item management integral to the defense acquisition life cycle.

Integrating ISO/IEC/IEEE 24748-7 with these standards enhances defense project rigor and ensures comprehensive lifecycle management aligned with international best practices and defense-specific requirements.


Embracing the ISO/IEC/IEEE 24748-7:2025 standard allows defense program stakeholders to effectively manage complex system life cycles with proven systems engineering rigor, fostering project success and sustainable defense capabilities.

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Frequently Asked Questions

ISO/IEC/IEEE 24748-7:2026 is a standard published by the International Organization for Standardization (ISO). Its full title is "Systems and software engineering — Life cycle management — Part 7: Application of systems engineering on defence programs". This standard covers: This document establishes the requirements for systems engineering activities to be performed on projects of defence agencies, including the United States (US) Department of Defense (DoD), across the entire system life cycle. This document implements ISO/IEC/IEEE 15288 for use by defence agencies in acquiring systems or systems engineering support, including the planning, acquisition, operation, modification, and sustainment of defence systems. It provides the foundation for systems engineering within the context of ISO/IEC/IEEE 15288. This document provides detailed requirements for the application of the life cycle processes, activities, and tasks of ISO/IEC/IEEE 15288 for use on any defence system and includes the effective integration of agreement processes, technical processes, technical management processes, organizational project enabling processes, and essential specialty engineering requirements. While primarily supporting the acquirer-supplier agreement mode, this document also can be used to support the other modes: use by organizations, projects, and process assessors.

This document establishes the requirements for systems engineering activities to be performed on projects of defence agencies, including the United States (US) Department of Defense (DoD), across the entire system life cycle. This document implements ISO/IEC/IEEE 15288 for use by defence agencies in acquiring systems or systems engineering support, including the planning, acquisition, operation, modification, and sustainment of defence systems. It provides the foundation for systems engineering within the context of ISO/IEC/IEEE 15288. This document provides detailed requirements for the application of the life cycle processes, activities, and tasks of ISO/IEC/IEEE 15288 for use on any defence system and includes the effective integration of agreement processes, technical processes, technical management processes, organizational project enabling processes, and essential specialty engineering requirements. While primarily supporting the acquirer-supplier agreement mode, this document also can be used to support the other modes: use by organizations, projects, and process assessors.

ISO/IEC/IEEE 24748-7:2026 is classified under the following ICS (International Classification for Standards) categories: 35.080 - Software; 95.020 - Military in general. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO/IEC/IEEE 24748-7:2026 has the following relationships with other standards: It is inter standard links to ISO/IEC/IEEE 24748-7:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO/IEC/IEEE 24748-7:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


International
Standard
ISO/IEC/IEEE
24748-7
Second edition
Systems and software
2026-02
engineering — Life cycle
management —
Part 7:
Application of systems engineering
on defence programs
Ingénierie des systèmes et du logiciel — Gestion du cycle de vie —
Partie 7: Application de l'ingénierie des systèmes aux
programmes de défense
Reference number
© IEEE 2026
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 or IEEE at the
respective address below or ISO’s member body in the country of the requester.
Institute of Electrical and Electronics Engineers, Inc
3 Park Avenue, New York
NY 10016-5997, USA
Email: stds.ipr@ieee.org
Website: www.ieee.org
Published in Switzerland
© IEEE 2026 – All rights reserved
ii
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Abbreviated terms .2
4 Conformance . 3
4.1 Intended usage .3
4.2 Full conformance .3
4.2.1 Full conformance to outcomes .3
4.2.2 Full conformance to tasks .3
4.3 Tailored conformance .3
5 Key concepts and their application . 4
5.1 General .4
5.2 System concepts .4
5.2.1 Systems .4
5.2.2 System structure .4
5.2.3 Interfacing, enabling, and interoperating systems .4
5.2.4 Concepts related to the system solution context.4
5.2.5 Product line engineering (PLE).4
5.3 Organizational concepts .4
5.3.1 Organizations .4
5.3.2 Organization and project-level adoption .4
5.3.3 Organization and collaborative activities . .4
5.4 System of systems concepts .4
5.4.1 Differences between systems and SoS .4
5.4.2 Managerial and operational independence .4
5.4.3 Taxonomy of SoS .4
5.4.4 SoS considerations in life cycle stages of a system .5
5.4.5 Application of this document to SoS .5
5.5 Life cycle concepts .5
5.5.1 System life cycle model .5
5.5.2 System life cycle stages .5
5.6 Process concepts .6
5.6.1 Criteria for processes .6
5.6.2 Description of processes .6
5.6.3 General characteristics of processes .6
5.7 Processes in this document .6
5.7.1 General .6
5.7.2 Agreement processes .6
5.7.3 Organizational project-enabling processes .7
5.7.4 Technical management processes.7
5.7.5 Technical processes .7
5.8 Process application .7
5.8.1 Overview .7
5.8.2 Process iteration, recursion, and concurrency .8
5.8.3 Process views .8
5.9 Concept and system definition .8
5.10 Assurance and quality characteristics.8
5.11 Process reference model .8
6 System life cycle processes . 9
6.1 Agreement processes .9

© IEEE 2026 – All rights reserved
iii
6.1.1 Acquisition process .9
6.1.2 Supply process .9
6.2 Organizational project-enabling processes .10
6.2.1 Life cycle model management process .10
6.2.2 Infrastructure management process .10
6.2.3 Portfolio management process .10
6.2.4 Human resource management process .11
6.2.5 Quality management process .11
6.2.6 Knowledge management process . 12
6.3 Technical management processes . 12
6.3.1 Project planning process . . 12
6.3.2 Project assessment and control process . 13
6.3.3 Decision management process.14
6.3.4 Risk management process . 15
6.3.5 Configuration management process .16
6.3.6 Information management process .18
6.3.7 Measurement process .19
6.3.8 Quality assurance process . 20
6.4 Technical processes . . 20
6.4.1 Business or mission analysis process . 20
6.4.2 Stakeholder needs and requirements definition process .21
6.4.3 System requirements definition process. 22
6.4.4 System architecture definition process . 23
6.4.5 Design definition process . 25
6.4.6 System analysis process . 26
6.4.7 Implementation process . 28
6.4.8 Integration process . 28
6.4.9 Verification process . 30
6.4.10 Transition process .32
6.4.11 Validation process . 33
6.4.12 Operation process . 34
6.4.13 Maintenance process . 35
6.4.14 Disposal process . 36
Bibliography .38
IEEE notices and abstract .40

© IEEE 2026 – All rights reserved
iv
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).
IEEE Standards documents are developed within IEEE Societies and subcommittees of IEEE Standards
Association (IEEE SA) Board of Governors. IEEE develops its standards through an accredited consensus
development process, which brings together volunteers representing varied viewpoints and interests to
achieve the final product. IEEE standards are documents developed by volunteers with scientific, academic,
and industry-based expertise in technical working groups. Volunteers are not necessarily members of
IEEE or IEEE SA and participate without compensation from IEEE. While IEEE administers the process and
establishes rules to promote fairness in the consensus development process, IEEE does not independently
evaluate, test, or verify the accuracy of any of the information or the soundness of any judgments contained
in its standards.
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
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 7, Software and systems engineering, in cooperation with the Systems and Software
Engineering Standards Committee of the IEEE Computer Society, under the Partner Standards Development
Organization cooperation agreement between ISO and IEEE.
This second edition cancels and replaces the first edition (ISO/IEC/IEEE 24748-7:2019), which has been
technically revised.
The main changes are as follows:
— aligned content to ISO/IEC/IEEE 15288:2023 which was recently revised
— converted from original IEEE Std format to ISO format
— updated necessary defence specific language to include outputs
— Added/updated defence references
A list of all parts in the ISO/IEC/IEEE 24748 series can be found on the ISO and IEC websites.

© IEEE 2026 – All rights reserved
v
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.

© IEEE 2026 – All rights reserved
vi
Introduction
For effective and efficient application of ISO/IEC/IEEE 15288 on defence programs, additional application
requirements are needed. ISO/IEC/IEEE 15288 is written in a general manner to address all types of systems
and different modes of application. Thus, it does not have requirements specific to the use by defence projects
that facilitate effective implementation of an acquirer-supplier agreement, such as use in defence contracts.
This document implements ISO/IEC/IEEE 15288 for application on defence programs, providing the
defence-specific language and terminology to help ensure the correct application of acquirer-supplier
requirements for a defence program. It provides the basis for selection, negotiation, agreement, and
performance of necessary systems engineering activities and delivery of products, while allowing flexibility
for both innovative implementation and tailoring of the specific systems engineering process(es) to be used
by system suppliers, either contractors or government system developers, integrators, maintainers, or
sustainers. This document includes the expected or required outputs and associated attributes.

© IEEE 2026 – All rights reserved
vii
International Standard ISO/IEC/IEEE 24748-7:2026(en)
Systems and software engineering — Life cycle
management —
Part 7:
Application of systems engineering on defence programs
1 Scope
This document establishes the requirements for systems engineering activities to be performed on projects
of defence agencies, including the United States (US) Department of Defense (DoD), across the entire
system life cycle. This document implements ISO/IEC/IEEE 15288 for use by defence agencies in acquiring
systems or systems engineering support, including the planning, acquisition, operation, modification, and
sustainment of defence systems. It provides the foundation for systems engineering within the context
of ISO/IEC/IEEE 15288. This document provides detailed requirements for the application of the life
cycle processes, activities, and tasks of ISO/IEC/IEEE 15288 for use on any defence system and includes
the effective integration of agreement processes, technical processes, technical management processes,
organizational project enabling processes, and essential specialty engineering requirements. While
primarily supporting the acquirer-supplier agreement mode, this document also can be used to support the
other modes: use by organizations, projects, and process assessors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO/IEC/IEEE 15288:2023, Systems and software engineering — System life cycle processes
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO, IEC and IEEE maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
— IEEE Standards Dictionary Online: available at http:// dictionary .ieee .org
NOTE For additional terms and definitions in the field of systems and software engineering, see
ISO/IEC/IEEE 24765, which is published periodically as a “snapshot” of the SEVOCAB (Systems and software
Engineering Vocabulary) database and which is publicly accessible at http:// www .computer .org/ sevocab.

© IEEE 2026 – All rights reserved
3.1.1
allocated baseline
approved requirements for a product, subsystem or component, describing the functional, performance,
interoperability, and interface requirements that are allocated from higher-level requirements and the
verifications required to demonstrate achievement of those requirements, as established at a specific point
in time and documented in the allocated configuration documentation
3.1.2
baseline, noun
formally approved version of a configuration item (3.1.3), regardless of media, formally designated and fixed
at a specific time during the configuration item's life cycle
Note 1 to entry: This document uses the noun form of baseline to refer only to configuration baselines managed by
the configuration management process, including the functional baseline (3.1.4), allocated baseline (3.1.1), and product
baseline (3.1.5). It does not refer to other baselines used in defence such as the acquisition program baseline.
[SOURCE: ISO/IEC/IEEE 15288:2023, 3.8, modified — Note 1 to entry has been added.]
3.1.3
configuration item
item or aggregation of system elements that is designated for configuration management and treated as a
single entity in the configuration management process
[SOURCE: ISO/IEC/IEEE 15288:2023, 3.11, modified — ‘hardware, software, or both’ has been replaced with
‘system elements’]
3.1.4
functional baseline
description of the system’s performance (functional, interoperability, and interface characteristics) and the
verification required to demonstrate the achievement of those specified characteristics
Note 1 to entry: The functional baseline is directly traceable to the operational requirements contained in the initial
capabilities document or equivalent document.
3.1.5
product baseline
description of the detailed design at a specific point in time, for production, fielding or deployment, and
operations and support
Note 1 to entry: The product baseline prescribes all necessary physical (form, fit and function) characteristics and
selected functional characteristics designated for production acceptance testing and production test requirements.
Note 2 to entry: The product baseline is also known as the product configuration baseline. It is intended as the product
configuration.
3.1.6
system effectiveness analysis
analytical approach used to determine how well a system performs in its intended utilization environment
3.2 Abbreviated terms
CDRL contract data requirements list
CI configuration item
CM configuration management
DEMIL demilitarization
DID data item description
© IEEE 2026 – All rights reserved
DoDAF DoD architecture framework
DoDD US Department of Defense Directive
DoDI US Department of Defense Instruction
DoDM US Department of Defense Manual
ECP engineering change proposal
ECR engineering change request
ESOH environment, safety, and occupational health
EVM earned value management
NDI non-development item
IMP integrated master plan
IMS integrated master schedule
JCIDS joint capabilities integration and development system
MODAF UK Ministry of Defence architecture framework
SEMP systems engineering management plan
SEP systems engineering plan
SoS system of systems
TPM technical performance measures
4 Conformance
4.1 Intended usage
ISO/IEC/IEEE 15288:2023, 4.1 shall apply as stated with the following addition:
This document includes required outputs for defence applications for each process.
4.2 Full conformance
4.2.1 Full conformance to outcomes
ISO/IEC/IEEE 15288:2023, 4.2.1 shall apply as stated.
4.2.2 Full conformance to tasks
ISO/IEC/IEEE 15288:2023, 4.2.2 shall apply as stated.
4.3 Tailored conformance
ISO/IEC/IEEE 15288:2023, 4.3 shall apply as stated with the following addition:
The tailoring process shall be in accordance with ISO/IEC/IEC 15288:2023, Annex A.

© IEEE 2026 – All rights reserved
5 Key concepts and their application
5.1 General
ISO/IEC/IEEE 15288:2023, 5.1 applies as stated.
5.2 System concepts
5.2.1 Systems
ISO/IEC/IEEE 15288:2023, 5.2.1 applies as stated.
5.2.2 System structure
ISO/IEC/IEEE 15288:2023, 5.2.2 applies as stated.
5.2.3 Interfacing, enabling, and interoperating systems
ISO/IEC/IEEE 15288:2023, 5.2.3 applies as stated.
5.2.4 Concepts related to the system solution context
ISO/IEC/IEEE 15288:2023, 5.2.4 applies as stated.
5.2.5 Product line engineering (PLE)
ISO/IEC/IEEE 15288:2023, 5.2.5 applies as stated.
5.3 Organizational concepts
5.3.1 Organizations
ISO/IEC/IEEE 15288:2023, 5.3.1 applies as stated.
5.3.2 Organization and project-level adoption
ISO/IEC/IEEE 15288:2023, 5.3.2 applies as stated.
5.3.3 Organization and collaborative activities
ISO/IEC/IEEE 15288:2023, 5.3.3 applies as stated.
5.4 System of systems concepts
5.4.1 Differences between systems and SoS
ISO/IEC/IEEE 15288:2023, 5.4.1 applies as stated.
5.4.2 Managerial and operational independence
ISO/IEC/IEEE 15288:2023, 5.4.2 applies as stated.
5.4.3 Taxonomy of SoS
ISO/IEC/IEEE 15288:2023, 5.4.3 applies as stated.

© IEEE 2026 – All rights reserved
5.4.4 SoS considerations in life cycle stages of a system
ISO/IEC/IEEE 15288:2023, 5.4.4 applies as stated.
5.4.5 Application of this document to SoS
ISO/IEC/IEEE 15288:2023, 5.4.5 applies as stated.
5.5 Life cycle concepts
5.5.1 System life cycle model
ISO/IEC/IEEE 15288:2023, 5.5.1 applies as stated with the following additions:
NOTE 1 For use in US DoD programs, see DoDI 5000.02 for a discussion of the US DoD system life cycle model. For
NATO programs see NATO AAP-20. For use on other defence programs, refer to the applicable life cycle model of the
acquisition organization.
NOTE 2 Some defence organizations are using adaptive acquisition strategies where the life cycle and life cycle
stages are different depending on criteria such as complexity or project size. Figure 1 is a genericized example.
Key
OD outcome determination
MVP minimum viable product
MVCR minimum viable capability release
I iteration
R release
Figure 1 — Example adaptive acquisition strategy life cycle model
5.5.2 System life cycle stages
ISO/IEC/IEEE 15288:2023, 5.5.2 applies as stated with the following addition:
NOTE For use in US DoD programs, see DoDI 5000.02 for a discussion of the US DoD system life cycle stages. For
NATO programs see NATO AAP-20. For use on other defence programs, refer to the applicable life cycle model of the
acquisition organization.
© IEEE 2026 – All rights reserved
5.6 Process concepts
5.6.1 Criteria for processes
ISO/IEC/IEEE 15288:2023, 5.6.1 applies as stated.
5.6.2 Description of processes
ISO/IEC/IEEE 15288:2023, 5.6.2 applies as stated with the following addition:
For use on defence programs, each process in Clause 6 includes specific defence related systems engineering
outputs with attributes. ISO/IEC/IEEE 15288:2023 Annex B is applicable for defence programs regarding
process artefacts and information with the added outputs in Clause 6.
5.6.3 General characteristics of processes
ISO/IEC/IEEE 15288:2023, 5.6.3 applies as stated.
5.7 Processes in this document
5.7.1 General
ISO/IEC/IEEE 15288:2023, 5.7.1 applies as stated.
5.7.2 Agreement processes
ISO/IEC/IEEE 15288:2023, 5.7.2 applies as stated with the following additions:
The agreement between the acquirer and supplier shall include the systems engineering requirements
based on the tailoring (or other adaptation) of the requirements of this document to address the program
situation.
The agreement shall include the means by which conformance is to be determined which may include
accomplishment of outcomes, completion of tasks, or delivery of outputs.
NOTE 1 The acquirer request for proposal can include the intended tailoring (or other adaptation) of the systems
engineering requirements from this document. The supplier can propose changes or alternatives during the steps to
finalize the agreement.
NOTE 2 The acquirer-supplier agreement developed by the agreement processes can take on a much broader scope
and significance in a defence government or contractor environment. This agreement, often a negotiated and signed
contract for the full system or product of interest, provides much of the context for implementation and governance of
the other processes defined throughout this standard.
Figure 2 illustrates the application of agreement processes for products, systems and system elements.

© IEEE 2026 – All rights reserved
Figure 2 — Application of the agreement processes for products, systems, and system elements
5.7.3 Organizational project-enabling processes
ISO/IEC/IEEE 15288:2023, 5.7.3 applies as stated.
5.7.4 Technical management processes
ISO/IEC/IEEE 15288:2023, 5.7.4 applies as stated.
5.7.5 Technical processes
ISO/IEC/IEEE 15288:2023, 5.7.5 applies as stated with the following addition:
NOTE The results of systems engineering technical process activities are captured and stored by the supplier,
including product support analysis results, assessments, trade studies, and verifications, in accordance with the
acquirer-supplier agreement. This includes decisions and the rationale for those decisions so that they can be
reviewed throughout the life of the system. These artefacts are maintained in the supplier's format and made available
to support the system throughout its lifecycle. The technical process activities to be captured are documented in the
systems engineering management plan (SEMP).
5.8 Process application
5.8.1 Overview
ISO/IEC/IEEE 15288:2023, 5.8.1 applies as stated with the following addition:
Project planning, system analysis, and project assessment and control are key systems engineering processes,
with emphasis on their contribution to enabling technical decision making. These processes coordinate and
control the performance of the other processes across the life cycle for the systems engineering application.
This set of process applications:
— identifies the work to be performed and develops schedules and costs estimates for the effort;
— coordinates the other process activities and helps ensure that all are operating from the same set of
agreements and system definition iteration;

© IEEE 2026 – All rights reserved
— evaluates the outputs of the other activities and conducts independent studies to determine which
alternate approach is best suited to the application;
— determines when results of one activity require the action of another activity and directs the action to
be performed;
— documents the results of analyses and studies, maintains control of the evolving configuration, and
measures and reports progress.
The success of any project or program is dependent upon the systems engineering planning and control of
the project and its processes. Project planning not only contributes to planning the work to be performed and
the schedule for the effort, but it is also used to plan how all the other technical and technical management
processes should be employed throughout the system life cycle.
The systems engineering control function is dependent upon the analyses (requirements analysis, trade-
off studies or design analysis) of the data and information upon which to base decisions. These analyses,
conducted for each iteration of the systems engineering processes, are performed to support any of the
technical management processes (6.3) and the technical processes (6.4) that require the analytical data to
support decisions. Also, note that performance of the processes focused on concept and system definition
require input from processes that focus on system realization, deployment, and use. All this needs to be
accomplished across the life cycle.
Model-based systems and software engineering is also applicable for defence applications to implement
processes and achieve expected outcomes. See ISO/IEC/IEEE 15288:2023, Annex D for additional
information.
NOTE See DoDI 5000.97 and the Digital Engineering Body of Knowledge for additional information on US DoD
applications.
5.8.2 Process iteration, recursion, and concurrency
ISO/IEC/IEEE 15288:2023, 5.8.2 applies as stated.
5.8.3 Process views
ISO/IEC/IEEE 15288:2023, 5.8.3 applies as stated with the following addition as a note under the bullet
‘specialty engineering’:
NOTE Specialty engineering includes but is not limited to such areas as availability, maintainability, reliability,
safety, security, human factors, and usability. In addition, other defence related considerations include cyber security,
survivability/vulnerability/susceptibility, nuclear weapons effects, electronic warfare, part and material obsolescence,
counterfeit part concerns, industrial base/capability, automatic and special test equipment, airworthiness, conditioned
based maintenance, non-destructive inspection and testing, and product assurance.
5.9 Concept and system definition
ISO/IEC/IEEE 15288:2023, 5.9 applies as stated.
5.10 Assurance and quality characteristics
ISO/IEC/IEEE 15288:2023, 5.10 applies as stated.
5.11 Process reference model
ISO/IEC/IEEE 15288:2023, 5.11 applies as stated with the following addition:
For defence applications, ISO/IEC/IEEE 15288:2023, Annex C is applicable with guidance on creating a
process reference model for assessment purposes.

© IEEE 2026 – All rights reserved
6 System life cycle processes
6.1 Agreement processes
6.1.1 Acquisition process
6.1.1.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.1.1.1 applies as stated.
6.1.1.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.1.1.2 shall be achieved in accordance with the acquirer-supplier agreement.
6.1.1.3 Activities and tasks
ISO/IEC/IEEE 15288:2023, 6.1.1.3 shall be implemented.
6.1.1.4 Acquisition process outputs
One or more of the following acquisition process outputs shall be provided in accordance with the acquirer-
supplier agreement.
a) Request for proposal.
b) Contract, including any special contract requirements such as statement of objectives (SOO), statement
of work (SOW), contract data requirements list (CDRL), and data item description (DID) for US DoD
acquisition, or similar information for other defence agencies based on their organizational-specific
acquisition life cycle model, processes, regulations, and requirements.
NOTE 1 A CDRL is used for identifying potential data requirements and the DID is a standardization document
that defines the data content, format and intended use.
NOTE 2 For US DoD programs, see MIL HDBK 245E and MIL STD 963C for additional guidance on preparing a
statement of work and DIDs.
c) Contract modifications, approved engineering change proposals (ECPs), approved engineering change
requests (ECRs) to modify the acquirer-supplier agreement.
6.1.2 Supply process
6.1.2.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.1.2.1 applies as stated.
6.1.2.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.1.2.2 shall be achieved in accordance with the acquirer-supplier agreement.
6.1.2.3 Activities and tasks
ISO/IEC/IEEE 15288:2023, 6.1.2.3 shall be implemented.
6.1.2.4 Supply process outputs
One or more of the following supply process outputs shall be provided in accordance with the acquirer-
supplier agreement.
a) Contract.
© IEEE 2026 – All rights reserved
b) Contract modifications, ECPs or ECRs to modify the acquirer-supplier agreement.
c) Other deliverables as per CDRL, DID or equivalent contract requirements list.
6.2 Organizational project-enabling processes
6.2.1 Life cycle model management process
6.2.1.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.2.1.1 applies as stated.
6.2.1.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.2.1.2 shall be achieved in accordance with the acquirer-supplier agreement.
6.2.1.3 Activities and tasks
ISO/IEC/IEEE 15288:2023, 6.2.1.3 shall be implemented.
6.2.1.4 Life cycle model management process outputs
The following life cycle model management process outputs shall be provided in accordance with the
acquirer-supplier agreement:
— None (outside scope of single contract).
NOTE Project specific outputs are provided in the SEMP. See 6.3.1.4.
6.2.2 Infrastructure management process
6.2.2.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.2.2.1 applies as stated.
6.2.2.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.2.2.2 shall be achieved in accordance with the acquirer-supplier agreement.
6.2.2.3 Activities and tasks
ISO/IEC/IEEE 15288:2023, 6.2.2.3 shall be implemented.
6.2.2.4 Infrastructure management process outputs
The following infrastructure management process outputs shall be provided in accordance with the
acquirer-supplier agreement:
— None (outside scope of single contract).
NOTE Project specific outputs can be provided in the SEMP. See 6.3.1.4.
6.2.3 Portfolio management process
6.2.3.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.2.3.1 applies as stated.

© IEEE 2026 – All rights reserved
6.2.3.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.2.3.2 shall be achieved in accordance with the acquirer-supplier agreement
with the following addition:
NOTE Business ventures, opportunities, or investments in some defence contexts refer to acquisition programs,
hence to be referred to as projects.
6.2.3.3 Activities and tasks
ISO/IEC/IEEE 15288:2023, 6.2.3.3 shall be implemented with the following addition:
NOTE For US DoD applications, see DoDD 7045.20 for additional guidance.
6.2.3.4 Portfolio management process outputs
The following portfolio management process outputs shall be provided in accordance with the acquirer-
supplier agreement:
— None (outside scope of single contract).
NOTE Project specific outputs can be provided in the SEMP. See 6.3.1.4.
6.2.4 Human resource management process
6.2.4.1 Purpose
ISO/IEC/IEEE 15288:2023, 6.2.4.1 applies as stated.
6.2.4.2 Outcomes
ISO/IEC/IEEE 15288:2023, 6.2.4.2 shall be achieved in accordance with
...

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