> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meerietechnology.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to set estimates and notes

> Step 3: give every uncertain number a range, and record where it came from.

Estimates is an editable grid of everything you know or assume, grouped by section (for example Demand, Delivery, Money).

![Choosing an estimate and reading its range and distribution](https://mintcdn.com/meerie/4m98nozhN6Vq_X0_/images/estimates.gif?s=d58f04320ac93b36f6a7295b037ca9a3)

![Estimates grid](https://mintcdn.com/meerie/4m98nozhN6Vq_X0_/images/user-guide/03-estimates.jpg?fit=max\&auto=format\&n=4m98nozhN6Vq_X0_\&q=85\&s=272476e71358642c679a2719109ffa35)

**1. Find the estimate**

Search by name, or use **Needs attention** to list estimates still missing a value or evidence.

**2. Choose how you describe it**

Select the estimate to edit it on the right (tabs: Estimate, Evidence, History). The choices are explained in [Choosing how to describe an estimate](https://docs.meerietechnology.com/estimate/describe-estimates.md).

**3. Record the unit, basis, owner and evidence**

The basis is *observed here*, *external evidence* or *working estimate*.

**4. Read the read-back**

Expand the row to see a plain-language sentence of what the model understood. Confirm it says what you mean.

> [!WARNING]
>
> Anything marked **not yet known** blocks the run, so nothing is silently treated as zero.

## Notes on an estimate

Keep an estimate's description to one sentence plus "See \[\[note title]]" (240 characters at most). Put the evidence and the reasoning in a [note](https://docs.meerietechnology.com/tools/notes.md). Saving an estimate with web sources, or accepting a research proposal, writes the evidence note for you. Editing notes or descriptions does not make saved runs out of date.

## Tips for honest ranges

* Set the range so you would be surprised if the true value fell outside it, not so it is safe.
* Write the low end first. People anchor on the likely value and set ranges too narrow.
* Use **Calibration & Training** to check how your own ranges have performed. See [Calibration](https://docs.meerietechnology.com/advanced/calibration-specialist.md).

## Research

Research starts from an estimate, an arrow or the options list, and never changes the model by itself. It leaves evidence and a **proposal**, and nothing changes until the owner accepts it. See [Research sources](https://docs.meerietechnology.com/advanced/research-sources.md).

**Next:** [Why ranges, not single numbers](https://docs.meerietechnology.com/estimate/why-ranges.md)


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