TS ISO/IEC 20000-3

TS ISO/IEC 20000-3 provides guidance on defining the scope of a service management system (SMS) and on determining when the requirements of ISO/IEC 20000-1 are applicable. In practical terms, it helps an organization clarify the boundaries of its service delivery arrangement before moving into conformity assessment.

Why scope definition matters

In service management, scope is the framework that identifies which organizational units, services, locations, processes, and outsourced relationships are included in the SMS. That distinction matters because the applicability of ISO/IEC 20000-1 depends on how services are provided and where the SMS begins and ends. This document is especially useful for organizations that have little experience in defining the scope of management systems.

Practical guidance for implementation and assessment

The standard is intended for personnel planning an SMS implementation, as well as assessors and consultants. It supplements the implementation guidance in ISO/IEC 20000-2 and also supports the conformity-assessment context referenced by ISO/IEC 20000-6. Annex A includes example SMS scope statements for scenarios ranging from very simple organizations to complex service supply chains, illustrating how scope wording can be structured in practice.

From a general technical perspective, clear scope statements in service management standards make visible which services are governed by the management system, which interfaces are excluded, and how stakeholder expectations are handled. Scope definition is therefore not just an administrative statement; it is a core design element that shapes planning, operation, and assessment of the SMS.