ISO 21350:2023
(Main)Space systems — Off-the-shelf item utilization
Space systems — Off-the-shelf item utilization
This document contains requirements and guidelines for the utilization of off-the-shelf (OTS) items, their selection, acquisition, integration, qualification and implementation related to a space product or system. This document doesn't cover piece parts and materials, such as electrical, electronic and electromechanical (EEE) parts, thermocouples, rivets, fasteners, connectors, fittings, adhesives, insulation, wiring and plumbing.
Systèmes spatiaux — Utilisation d'équipement prêt à l'emploi
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 21350
Second edition
2023-04
Space systems — Off-the-shelf item
utilization
Systèmes spatiaux — Utilisation d'équipement prêt à l'emploi
Reference number
© ISO 2023
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Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Responsibilities . 2
4.2 Tailoring . 2
5 Policy . 2
5.1 Evaluation of the OTS item design . 2
5.1.1 General . 2
5.1.2 OTS item requirements . 2
5.1.3 OTS item evaluation . 2
5.2 Rules in a critical application of OTS . 3
5.2.1 Operational boundaries . 3
5.2.2 Design evaluation . 3
5.2.3 OTS item modifications . 3
5.2.4 Qualification requirements . 3
6 Precautions and warning notes . 4
6.1 Notes about product heritage of OTS item . 4
6.1.1 OTS product heritage . 4
6.1.2 Application of OTS item design/manufacturing practices . 4
6.1.3 OTS item design margins . 4
6.2 Acquisition of OTS items . 4
6.2.1 General . 4
6.2.2 Specification . 4
6.2.3 Space environment . 4
6.2.4 Configuration control. 4
6.2.5 Acceptance testing . 4
6.2.6 Maintenance . 5
6.3 Management of modified OTS item . 5
6.3.1 Purchasing . 5
6.3.2 Qualification . 5
6.4 Programmatic decision to use an OTS item. 5
6.4.1 Functional/technical capability . 5
6.4.2 Interface definition . 5
6.4.3 Modification versus heritage. 5
7 Decision logic for OTS item usage .5
8 Procedure .6
8.1 Categorizing of available OTS items . 6
8.2 Considering a good candidate for selection . 6
8.3 Compromise of discrepancies between an OTS item and project requirements . 6
8.4 Satisfying the OTS item’s requirements. 6
8.4.1 Qualification plan . 6
8.4.2 Categorization . 6
8.4.3 Combining the parameters . . 7
Annex A (informative) A decision logic for OTS item utilization . 8
Annex B (normative) Requirement list for OTS item utilization .12
Annex C (informative) OTS item application categories .14
iii
Bibliography .15
iv
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
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 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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes 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 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. ISO 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.
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 21350:2007), which has been technically
revised.
The main changes are as follows:
— normative references updated, and related terms and definitions added and renumbered;
— minor changes in Clauses 4, 5, 6 and annexes.
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.
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Introduction
Space projects and organizations are more often faced with proposals to use off-the-shelf (OTS) items
which can offer opportunities for reduced cycle time, faster insertion of new technology and lower
procurement costs.
Space projects and organizations have successfully used OTS items in a wide variety of space
applications, largely in part, through structured application of best practices in business, management
and engineering by understanding the risk associated with using OTS items.
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INTERNATIONAL STANDARD ISO 21350:2023(E)
Space systems — Off-the-shelf item utilization
1 Scope
This document contains requirements and guidelines for the utilization of off-the-shelf (OTS) items,
their selection, acquisition, integration, qualification and implementation related to a space product or
system.
This document doesn't cover piece parts and materials, such as electrical, electronic and
electromechanical (EEE) parts, thermocouples, rivets, fasteners, connectors, fittings, adhesives,
insulation, wiring and plumbing.
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 9000, Quality management systems — Fundamentals and vocabulary
ISO 14300-1, Space systems
...
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