ISO 18238-2015 PDF

Full title and description

ISO 18238:2015 — Space systems — Closed loop problem solving management. This international standard specifies basic procedures and requirements for closed‑loop problem solving applied to product quality issues (failures, defects, accidents and other undesirable conditions) in space systems and related organisations.

Abstract

ISO 18238:2015 provides a framework to improve problem‑solving management across space product lifecycles: impact mitigation, root‑cause identification, problem containment, corrective action and lessons learned. It is intended for use from engineering development onward to ensure problems are analysed, contained and prevented from recurring.

General information

• Status: Published (International Standard; confirmed at review).
• Publication date: 5 November 2015 (ISO edition published November 2015).
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 49.140 (Space systems and operations).
• Edition / version: Edition 1 (2015).
• Number of pages: 13 (official ISO edition length).

Technical committee: ISO/TC 20/SC 14 (space systems and operations). This publication was last reviewed and confirmed in 2021 and therefore the 2015 edition remains current as of that review.

Scope

Applies to closed‑loop problem solving management for all space products and activities, beginning at engineering development and extending through production, test and operation. The standard establishes required steps for identifying, analysing and mitigating product quality problems and for capturing corrective/preventive lessons learned to avoid recurrence.

Key topics and requirements

• Defined closed‑loop problem solving process (detection, containment, diagnosis, corrective action, verification, and closure).
• Root cause analysis and mechanism‑level investigation for failures and defects.
• Impact assessment and risk/containment measures to protect ongoing operations and flight hardware.
• Responsibilities and roles for organisation, suppliers and subcontractors in problem resolution.
• Requirements for documenting actions, evidence, verification and lessons learned.
• Linkage with quality management and configuration/product data to ensure traceability of corrective actions.

Typical use and users

Used by space agencies, prime contractors, subsystem suppliers, systems engineers, quality assurance and reliability teams, failure analysis groups, and programme/project managers to standardise how technical problems are investigated, contained and closed across programmes and supply chains.

Related standards

ISO 18238 sits within ISO/TC 20/SC 14’s family of space systems standards and is commonly referenced alongside other space‑sector management and engineering standards (for example ISO 16290 on TRLs and programme/project management standards such as recent ISO 14300 series). National adoptions and sector standards (for example GB/T adaptations in China and various EN/BS national publications) have referenced or implemented ISO 18238 practices.

Keywords

closed loop, problem solving, root cause analysis, containment, corrective action, lessons learned, space systems, quality management, failure analysis, ISO 18238

FAQ

Q: What is this standard?

A: ISO 18238:2015 is an international standard titled "Space systems — Closed loop problem solving management" that defines procedures and requirements for structured, closed‑loop handling of quality and safety problems in space products and programmes.

Q: What does it cover?

A: It covers the full closed‑loop problem solving process: impact mitigation and containment, detailed root‑cause and mechanism analysis, corrective actions, verification of fixes, documentation, and capturing lessons learned to prevent recurrence.

Q: Who typically uses it?

A: Space agencies, prime contractors, subsystem and component suppliers, quality and failure‑analysis engineers, systems engineers and programme managers employ this standard to harmonise how problems are investigated, resolved and prevented across projects and supply chains.

Q: Is it current or superseded?

A: The published edition is from November 2015 (Edition 1). ISO records indicate the publication was reviewed and confirmed in 2021, so the 2015 edition remains the current ISO edition following that review.

Q: Is it part of a series?

A: It is not a multipart standard series itself but forms part of the broader set of ISO standards for space systems maintained by ISO/TC 20/SC 14; organisations typically apply it alongside related programme, project and engineering standards within that family.

Q: What are the key keywords?

A: Closed loop, problem solving, root cause, containment, corrective action, lessons learned, space systems, quality management (ISO 18238).