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ITSM (IT Service Management)

26 November 2025

Knowledge

ISO 27001

What is ITSM (IT Service Management)?

IT service management is a set of processes and functions that help to align IT with organisational goals and deliver value. Sometimes referred to now simply as service management, ITSM focuses on delivering services that have a focus on the end user and that have an adequate amount of utility (fitness for purpose) and warranty (fitness for use).

IT service management is about more than ITIL. While ITIL does provide a basis for IT service management, the development of an international standard for IT Service Management, ISO/IEC 20000, has been crucial to the long term take up of IT service management around the world.

View the ISO 20000 standards

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ITSM Books

For those new to ITSM, we recommend the following books:

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ITSM Qualifications and Training

Accredited ITIL service management qualifications such as ITIL Expert certification can be achieved, and there is a wide range of classroom seminars and self-paced online training products that are designed to assist individuals to prepare for them.

ISO 20000 training is available for professionals who require the skills and knowledge to implement the ISO 20000 standard.

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ITSM Toolkits

IT service management toolkits provide practitioners and IT professionals with proven methodologies and tools that will enable them to accelerate their IT service management projects Discover our ITSM, ITIL®4 & ISO 20000 Toolkit by IT service management experts Shirley Lacy and Jenny Dugmore to help you in whatever stage you are at with your project.

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Service Level Agreements

Service level agreements (SLAs) are at the heart of IT service management and are used to describe agreed levels of service between a service provider and a customer. These are applicable both inside and outside an organisation.

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ISO/IEC 20000

ISO/IEC 20000 is the international service management standard. ISO 20000 enables organisations to ensure that their IT service management processes are aligned with business needs and international best practice. We recommend the following ISO 20000 titles: