How to get reporting latency right
This is one of those topics that looks small until it costs you something. The short answer to reporting latency is that it is mostly a sequence of small decisions, not one big one.
Data outlives the applications built on top of it, which is why the model deserves more thought than the screens. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.
What it costs to ignore
Decide how fresh reports genuinely need to be. Small and consistent beats large and occasional here. Check it against what you would want a competitor's site to get wrong.
The steps
- Establish what you have today before changing anything
- Real-time costs several times more than hourly
- Most decisions do not need same-minute data
- Write down the decision so the next person does not re-litigate it
Most decisions do not need same-minute data. None of that requires a large budget, only a decision and someone to own it. It rarely shows up as a line item, which is exactly why it slips.
Making it stick
What this looks like day to day
Numbers get quoted in meetings long after anyone remembers how they were calculated. Three things worth confirming about reporting latency before you move on:
- Someone can say what the current setup is without going to look
- Real-time costs several times more than hourly — and you know whether that is true here
- There is a way to tell whether the last change to this helped
The point is not perfection, it is knowing which of these you have consciously chosen to skip.