A dashboard's refresh schedule determines how current its data is. Distinguish event time, ingestion time and refresh time before calling a report real-time.
Before you begin
Use fictional or properly licensed data with a documented question, units and column definitions.
Work through the idea
State the decision or learning question first. Keep raw inputs separate from derived tables and document filters, exclusions and calculations. Check at least one result manually and record a limitation. Communicate what the evidence supports without inventing business outcomes or exposing personal information.
- Define acceptable latency
- Show the last successful refresh
- Plan for stale or failed refreshes
Practice task
Design a fictional service dashboard with a five-minute freshness requirement.
Check your result
Explain what users see if the source stops sending records or refresh fails.
A mistake to avoid
Do not label periodically refreshed data as instantaneous.
Keep a review note
Save the inputs or scenario, your reasoning and the result you checked. Explain one assumption and one case that needs more work. Revise the exercise after feedback and distinguish what you demonstrated from what remains untested.
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