What is a defining characteristic of a service catalog in ITIL?

A defining characteristic of a service catalog in ITIL is that it serves as a comprehensive list of available IT services. This catalog provides clarity on what services are provided to customers and stakeholders within the organization. It details the services available for use, along with descriptions, service level agreements (SLAs), and any relevant information needed for users to fully understand and utilize the services offered.

The service catalog acts as a point of reference that promotes transparency, ensures that service consumers are aware of their options, and helps manage expectations regarding service delivery. By having a well-structured service catalog, organizations can enhance their service management framework, streamline their service offerings, and improve overall efficiency in service delivery.

While other options mention important aspects related to IT service management, they do not specifically define the primary purpose of the service catalog as much as the comprehensive listing of services does. For instance, categorizing IT service risks, providing user feedback, or detailing financial budgets pertains to different areas of service management rather than the service catalog's role as an informational and functional resource.