Operational dashboards live or die on what the operator can see without scrolling. Across the six products I studied this month, a clear split emerged: dashboards built for monitoring (status at a glance) and dashboards built for intervention (decisions per minute).
Monitoring dashboards lean on sparklines and big numbers. Intervention dashboards lean on queues — a sorted list of work items with the next action one click away. Mixing the two modes is the most common failure I see.
The strongest example in the set put the queue first and the monitoring widgets in a collapsible rail. Everything in the rail was an alert source for the queue, which made the hierarchy honest.