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data mart

/ˈdeɪ.tə mɑːrt/ - n.

1 [colloq.] The version of the numbers a team built so it would stop having to agree with the other teams.Keep. Punchy.This is the problem.

Working definition

2. A curated, subject-area subset of the warehouse, modeled and maintained for a specific team or function's reporting needs.

Filed

See also

dbt modelA SQL file that turned a folder of opinions about 'revenue' into a folder of opinions under version control.
reverse etlSending the warehouse's answer back to the system that asked, so the two can be wrong in unison, at last.
transformationWhere the business logic lives, defined by whoever happened to write the join and unavailable for comment.