ISO IEC 20000-1-2018 PDF

Full title and description

ISO/IEC 20000-1:2018 — Information technology — Service management — Part 1: Service management system requirements. This international standard specifies requirements for organizations to establish, implement, maintain and continually improve a service management system (SMS) covering the planning, design, transition, delivery and improvement of services to meet service requirements and deliver value to customers and stakeholders.

Abstract

ISO/IEC 20000-1:2018 is the normative core of the ISO/IEC 20000 family and defines the requirements an organization must meet to operate an effective Service Management System (SMS). It is intended for organizations that provide services (internal or external), their customers, conformity assessment bodies, trainers and consultants; it supports assurance that services are planned, designed, transitioned, delivered and improved in a consistent, measurable way.

General information

• Status: Published (International Standard; confirmed in five‑year review cycles).
• Publication date: September 2018 (ISO/IEC 20000-1:2018).
• Publisher: ISO and IEC (joint publication by the International Organization for Standardization and the International Electrotechnical Commission).
• ICS / categories: 35.020; 03.080.99 (Information technology; Other services).
• Edition / version: Edition 3 (2018).
• Number of pages: 31 pages (base international edition as published by ISO).

Scope

The standard specifies requirements for an organization to establish, implement, maintain and continually improve an SMS covering the full service lifecycle: planning, design, transition, delivery and improvement. It applies to organizations (or parts of organizations) that manage and deliver services to internal or external customers and can be used by customers, auditors, training providers and consultants to assess or assist an SMS.

Key topics and requirements

• Establishing, documenting and continually improving a Service Management System (SMS) to meet service requirements and deliver value.
• Requirements for planning, design, transition, delivery and improvement of services (service lifecycle approach).
• Alignment with the ISO high‑level structure (Annex SL) to ease integration with other management system standards (e.g., ISO 9001, ISO/IEC 27001); terminology and structure updated in 2018 edition.
• Reduced prescriptive documentation compared with prior editions (focus on required outcomes rather than specific documents); updated terminology (e.g., use of “organization” instead of “service provider”) and changes to some planning and configuration requirements.
• Requirements to monitor, measure, review and improve the SMS and the services it supports; support for conformity assessment and certification.

Typical use and users

Primary users are organizations that design, manage or deliver IT and digital services (internal IT departments, managed service providers, cloud and BPO providers). Other typical users include customers requiring assurance of service quality, certification bodies and auditors performing SMS assessments, consultants and trainers supporting implementation, and procurement teams seeking consistent service practices across suppliers.

Related standards

ISO/IEC 20000-1:2018 is part of a multi-part series. Key related parts and documents include ISO/IEC 20000-2:2019 (guidance on application of an SMS), ISO/IEC 20000-3:2019 (guidance on scope definition and applicability), ISO/IEC 20000-10:2018 (concepts and vocabulary), ISO/IEC 20000-6:2017 (requirements for bodies providing audit and certification of SMS) and process/reference documents such as ISO/IEC TS 33054:2020 (process reference model for service management). The 2018 edition of part 1 has also received an amendment (Amd 1:2024). These companion documents provide guidance, vocabularies and assessment/audit requirements to support implementation and certification.

Keywords

service management, SMS, ITSM, service lifecycle, service delivery, continual improvement, certification, Annex SL, ISO/IEC 20000 series, service availability, service design.

FAQ

Q: What is this standard?

A: ISO/IEC 20000-1:2018 is the international normative standard that specifies requirements for a Service Management System (SMS) so organizations can plan, design, transition, deliver and continually improve services. It is the core requirements document in the ISO/IEC 20000 family.

Q: What does it cover?

A: It covers requirements for establishing, implementing, maintaining and improving an SMS across the service lifecycle (planning, design, transition, delivery and improvement), and includes requirements for monitoring, measurement and conformity assessment readiness. The 2018 edition restructured the standard to align with the ISO high‑level structure and modern service delivery models.

Q: Who typically uses it?

A: Organizations that provide services (internal IT teams, managed service providers, cloud and BPO providers), customers seeking assurance, certification bodies and auditors, plus consultants and trainers who implement or advise on SMSs.

Q: Is it current or superseded?

A: ISO/IEC 20000-1:2018 is the current (third) edition published in September 2018; the edition was confirmed in routine reviews and an amendment (Amd 1:2024) has been issued. National adoptions and country‑specific publications may include editorial changes or combined documents that incorporate the amendment.

Q: Is it part of a series?

A: Yes — it is the principal normative part of the ISO/IEC 20000 series. Companion parts provide guidance (20000-2), scope and applicability guidance (20000-3), concepts and vocabulary (20000-10), requirements for certification bodies (20000-6), and process/reference material (e.g., TS 33054). These parts are intended to be used together to implement, assess and certify an SMS.

Q: What are the key keywords?

A: Service management, SMS, ITSM, service lifecycle, service delivery, continual improvement, certification, Annex SL, service availability.