The role that should be assigned to a security team member who will be taking ownership of notable events in the incident review dashboard is the ess_analyst role. The ess_analyst role is a predefined role in Splunk Enterprise Security that grants the user the ability to view, edit, comment, and change the status and owner of notable events. The ess_analyst role also allows the user to access the dashboards, reports, and searches related to security analysis and investigation12. References = 1: Overview of roles and capabilities in Splunk Enterprise Security - Splunk Documentation - ess_analyst role. 2: Incident Review - Splunk Documentation - Triage notable events on the Incident Review dashboard.