Ranger ses données avant d'y lâcher un agent : supprimer, ranger, déd…
Five ordered steps, told by [Leo Brival](https://www.instagram.com/reel/DeXDPMUj2SZ/) from his company engagements: remove the useless, tidy the data, clean up inconsistencies, standardize the rules, follow over time. A consultant's field report, not a measured method.