Lignée des données
conceptLa lignée des données est un enregistrement traçable de l'origine des données, de la manière dont elles ont circulé et ont été modifiées, et de l'endroit où elles sont utilisées dans les systèmes et les processus.
Technical explanation
Lineage connects sources, pipelines, transformations, schemas, datasets, reports, models, and destinations. It may be captured from code, query logs, orchestration metadata, or manual documentation and represented at system, table, column, or record level.
Business relevance
Lineage supports impact analysis, root-cause investigation, auditability, migration, privacy requests, and confidence in reports and AI systems.
Implementation example
Before changing a CRM field, a team uses column-level lineage to identify affected warehouse models, dashboards, automation, and machine-learning features.
Limitations and common misconceptions
Lineage can be incomplete or stale, especially across manual exports and opaque vendor systems. It shows movement and transformation but does not by itself prove quality, lawful use, or semantic correctness.
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