

ISO/IEC 20000-1 (often referred to as ISO 20000) is the international standard that sets out the requirements for a Service Management System (SMS). It supports organisations in planning, designing, transitioning, delivering and improving services, including IT services. Meeting these requirements delivers value to both the customer and the service provider. Through ISO/IEC 20000-1 certification, your organisation demonstrates that it has clear processes in place to deliver reliable, efficient services that are aligned with customer requirements. SRAC, accredited by IAS (International Accreditation Service) – certificate no. MSCB-353, offers audit and certification services in accordance with the ISO/IEC 20000-1 standard.
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ISO/IEC 20000-1:2018 – “Information technology — Service management — Part 1: Service management system requirements” is the international standard that defines the requirements for a Service Management System (SMS), primarily applied in the IT services sector. It provides a certifiable framework through which an organization implements, maintains and continually improves its service management system, ensuring that its services consistently meet customer requirements and business objectives. Although primarily focused on IT services, the standard can be applied by any service provider seeking a structured and consistent approach to service management.
A Service Management System (SMS) brings together policies, objectives, processes, responsibilities and resources for managing services. By monitoring performance, assessing risks and improving processes, an organization aims to consistently deliver services in accordance with agreed requirements. Rather than managing each activity separately, the organization integrates its processes into a unified system, where the outputs of one process often become the inputs of another. In this way, the SMS ensures continuous control, greater efficiency and ongoing opportunities for improvement.
ISO/IEC 20000-1 and ITIL (Information Technology Infrastructure Library) are often confused. The key difference is that ISO/IEC 20000-1 is a standard containing auditable requirements for certifying an organization’s service management system, whereas ITIL is a best-practice framework that provides guidance on organizing, delivering and improving services and is not itself a management system certification standard.
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ITIL |
ISO/IEC 20000-1 |
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Framework for best practice in IT service management (ITSM). |
An international standard that sets out requirements for a service management system (SMS). |
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It provides recommendations for managing and improving IT services. |
It sets out requirements for the planning, design, transition, delivery and improvement of services. |
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Recommendations and practices that can be adapted to the organisation’s needs. |
Requirements that must be met in order to obtain certification. |
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It is not a certification standard for the organisation’s management system. |
It enables the certification of an organisation’s service management system. |
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It does not involve a certification audit of the management system. |
It involves auditing the management system against the requirements of the standard. |
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Focused on IT service management. |
Applies to organisations that provide or manage services, including IT services. |
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ITIL practices can support the implementation of ISO/IEC 20000-1. |
It does not require the use of ITIL to obtain certification. |
The two approaches are complementary: ITSM practices from ITIL, such as incident management, problem management and change management, can support the implementation of ISO/IEC 20000-1 requirements. However, adopting ITIL is not mandatory for certification, as the standard does not require organizations to use ITIL.
ISO/IEC 20000-1 covers the entire service lifecycle. Service design defines how a service should be structured to meet established requirements, for example through Service Level Agreements (SLAs). Service transition ensures the controlled introduction of services through activities such as building, testing, change management and deployment. Service delivery involves the day-to-day operation of services, including processes such as incident management, problem management, capacity management, availability management and service continuity management. Service improvement focuses on increasing the effectiveness of the Service Management System (SMS) and improving the services provided. An important element is supplier governance. When services are delivered through a combination of internal teams, external suppliers and subcontractors, the organization must maintain control over the relevant activities performed by these parties and retain responsibility for compliance with the standard’s requirements and for service delivery, regardless of the involvement of other parties.
The current edition is ISO/IEC 20000-1:2018, which replaced the 2011 version. The 2018 edition adopted the High-Level Structure common to management system standards, facilitating integration with ISO 9001 (quality management), ISO/IEC 27001 (information security) and ISO 22301 (business continuity).
In February 2024, an amendment (ISO/IEC 20000-1:2018/Amd 1:2024) addressing climate change was introduced, requiring organizations to determine whether climate change is a relevant issue within their organizational context.
Implementing ISO/IEC 20000-1 and obtaining certification offers tangible benefits:
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The ISO/IEC 20000-1 certification process involves auditing the organization’s service management system against the requirements of the standard.
Submit a request for quotation and agree on the contractual details.
Complete the two-stage certification audit: a review of documentation and an on-site assessment of the implementation of the service management system (Stage 1 and Stage 2 audits).
Address any identified nonconformities and verify the implementation of corrective actions.
Obtain the ISO/IEC 20000-1 certificate, valid for 3 years, subject to annual surveillance audits.
Undergo a recertification audit to renew the certificate for a further 3-year certification cycle.
The cost of ISO/IEC 20000-1 certification depends on the size of the organization, the number and complexity of the services managed, the number of locations and the certification scope. To determine the exact cost of ISO/IEC 20000-1 certification for your organization, the best approach is to request a customized quotation.
SRAC is accredited for service management system certification by IAS (International Accreditation Service, Inc.) – Certificate No. MSCB-353.
SRAC certificates benefit from international recognition through its partnership with IQNET (The International Certification Network). Certified organizations are entitled to use the SRAC and IQNET conformity marks for promotional purposes, in accordance with the applicable rules.
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ISO/IEC 20000-1 is intended for organizations that provide or manage services. Although it is primarily used in the information technology (IT) sector, it is also applicable to other industries:
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