Medallion architecture structures your data lake into three progressive trust layers. Tantor governs all three — from raw ingestion through semantic alignment — so every layer answers regulators and agents alike.
Raw data lands exactly as extracted — classified, lineage-tracked, and access-controlled from arrival
Cleansed, standardised, quality-validated — duplicates resolved, formats harmonised, PII masked
Semantically aligned, consumption-grade — business logic applied, agent-ready, report-ready
Policies enforced at every layer transition — no data moves without classification and lineage
AI agents, BI tools, and analysts access the layer appropriate to their use case and permissions
Without a governed platform, these problems compound with every new data source and every new AI deployment.
Enterprises that adopted data lakes without a layered architecture have repositories where raw, semi-processed, and analysis-ready data coexist with no quality progression and no governance differentiation.
Without defined layers, there is no structured process for data to mature from raw to trusted. The same data may be cleaned differently by different teams.
Most organisations govern data only when it reaches the reporting layer. Raw ingestion, intermediate transformations, and staging tables are ungoverned space.
Raw data preserved exactly as extracted, but not ungoverned. Classified, lineage-tracked, and access-controlled from landing. The immutable record of what arrived and when.
Cleansed, standardised, deduplicated, and PII-masked. Quality rules applied consistently — not ad hoc. The trusted working layer for analytical teams.
Business logic applied, semantic alignment complete, domain terminology standardised. The layer AI agents and regulated reports consume — proven, auditable, trustworthy.
Every promotion from Bronze to Silver to Gold is a governed event — quality gates passed, policies enforced, lineage extended. No data advances without documentation.
Every Bronze → Silver → Gold promotion logged — what changed, what quality gate passed, who approved.
Sensitive data classified and masked at landing — before any downstream access.
Trace any Gold record back through Silver to its Bronze origin and the original source system.
Data advances only when it meets defined quality thresholds — no silent degradation.
See how Tantor governs every layer of your medallion architecture — from raw Bronze through semantic Gold — with full lineage, quality gates, and compliance-ready audit trails.