# Loan eligibility (DMN)

Eligibility rules are usually ordered: the disqualifying checks come first. First as the hit policy encodes that ordering explicitly.

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## What this example shows

* A First hit policy, where row order is behaviour.
* Disqualifying rules placed at the top.
* A dash meaning the input does not matter for that rule.

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## Columns

| **Column**           | **Type and meaning**              |
| -------------------- | --------------------------------- |
| Age (input)          | number: applicant age in years    |
| Income (input)       | number: gross annual income       |
| Credit score (input) | number: 0 to 999                  |
| Decision (output)    | string: approve, refer or decline |

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## The decision table

Hit policy: **F (First)**. Cells are FEEL expressions, so a range, a list or a negation is a legal value; a dash means the input is irrelevant to that rule.

| **Age**    | **Income** | **Credit score** | **Decision** |
| ---------- | ---------- | ---------------- | ------------ |
| < 18       | \-         | \-               | "decline"    |
| \-         | \-         | < 400            | "decline"    |
| \-         | < 15000    | \-               | "refer"      |
| \[18..25)  | \-         | \[400..650)      | "refer"      |
| \-         | \-         | \>= 800          | "approve"    |
| \[25..65\] | \>= 30000  | \[650..800)      | "approve"    |
| \-         | \-         | \-               | "refer"      |

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## Making it your own

* The final catch-all row is what stops the table having a gap. Keep it last.
* With First, reordering rows changes behaviour. Note that on the table.
* Move the age and score thresholds into input data if they change often.

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## Related

[Shipping cost (DMN)Weight bands and destination zones.](https://help.gocapable.com/diagrams/shipping-cost-dmn.html)

[Support ticket priority (DMN)Impact and urgency, resolved to a priority.](https://help.gocapable.com/diagrams/support-ticket-priority-dmn.html)

[DMN examplesBack to the rest of these examples.](https://help.gocapable.com/diagrams/dmn-examples.html)

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_The hit policy is the whole decision._