# Data integrity and analytics

Telling missing from zero, knowing where each number came from, and records whose meaning changes over time.

- [Missing vs zero vs stale](https://atlasscope.dev/prompts/missing-vs-zero-vs-stale): Finds where 'we don't know' turns into 0 and then into a wrong total.
- [Where did this number come from?](https://atlasscope.dev/prompts/where-did-this-number-come-from): Checks that every number on screen can be traced back to a source document.
- [Old records, new meanings](https://atlasscope.dev/prompts/old-records-new-meanings): Finds old records that read differently once today's rules are applied to them.
- [Imports that fail quietly](https://atlasscope.dev/prompts/imports-that-fail-quietly): Finds rows that go missing or land on the wrong record during import, with no error.
- [Links between records worth adding](https://atlasscope.dev/prompts/links-between-records-worth-adding): Finds links between records worth adding, and ones the evidence does not support.
- [Code health, with proof](https://atlasscope.dev/prompts/code-health-with-proof): A general health check of the code that refuses findings without evidence.

Source: https://atlasscope.dev/prompts/data-integrity-and-analytics