This European Standard specifies processes for the management and operation of data centres. The primary focus of this standard is the operational processes necessary to deliver the expected level of resilience, availability, risk management, risk mitigation, capacity planning, security and energy efficiency. The secondary focus is on management processes to align the actual and future demands of users. Figure2 shows an overview of related processes. The transition from planning and building to operation of a data centre is considered as part of the acceptance test process in Clause6. [Image removed.] NOTE1 Only processes specific for data centres are in the scope of this document. Business processes like people management, financial management, etc. are out of scope. NOTE2 Specific skill sets are required of those working in and operating a data centre.