Is an indicator to monitor risk, present in all levels of the strategy: Pillars/Initiatives/CSF/Goals/KPIs whose status you want to clarify and reveals how close or far is the target to be conclude.
For example, a milestone might be overdue but you’re confident that the final deadline will be met so you give the initiative a green flag. Or, you might assign a Confidence Level Red Flag to a target that’s on track but you know will run into delays because of a third party's responsibility.