問題文
A dashboard for an operations team is being designed. Which principle decides what belongs on it?
選択肢
- Every metric the pipeline produces should appear somewhere on the dashboard, because a value that is not displayed cannot be noticed when it changes, and completeness is what makes a dashboard trustworthy as the single place the team looks.
- The dashboard should show only values that are currently within their normal range, so the team reads a clean board and looks elsewhere for exceptions.
- Each panel should support an action the team can actually take, so a value nobody responds to is removed rather than kept for completeness.
- Panels should be ordered by how expensive each metric is to compute, so the cheapest figures appear first and the board fills itself in from the top.