Data engineering·Governance, privacy and meaning
a new analyst rebuilds a model that already existed because they had no way to find it.
Data discovery
Also calleddataset discovery, findability
The problem of a person finding the right existing dataset for their question. It is the most common invisible cost in a large warehouse: duplicated models, three definitions of the same metric, and analysts querying raw tables because the modelled one was undiscoverable. It is also why table naming conventions are worth arguing about, since search over names is what most people actually use.