In which core publication can you find detailed descriptions of Service Level Management, Availability Management, Supplier Management and IT Service Continuity Management?

Service Transition covers processes like Change Management and Release and Deployment Management, which are focused on moving services into production rather than designing their service attributes.

Service Design is the ITIL core publication that defines processes for designing new or changed services to meet agreed business requirements. It specifically contains Service Level Management, Availability Management, Supplier Management, and IT Service Continuity Management - all processes concerned with ensuring services are fit for purpose and recoverable. These processes collectively address how services are designed to deliver consistent, available, and supplier-supported outcomes.

Service Strategy addresses financial management, demand management, and service portfolio management, which are concerned with strategic planning rather than the design of specific service quality attributes.

Service Operation covers incident management, problem management, and event management - processes focused on day-to-day delivery and support, not the design phase of the service lifecycle.