ISO 20000-1:2018  (ITSMS ) Certification is an international IT standard that permits organisations  to demonstrate brilliance and prove best practice in IT management. The standard makes sure companies can achieve evidence-based benchmarks to constantly progress their delivery of IT services. It defines how a company controls its service provision in terms of the design, transition, delivery and improvement of services that provide value for both the customer and the service provider. It is based around four key service management processes – Service Delivery, Control, Resolution and Relationship Management.