A single source of truth: what it means in practice

A single source of truth is an agreed rule for producing a measure, not necessarily one physical database.

DATAMEN editorial teamA practical perspective for leaders and transformation teams. The article contains no invented cases or results.

Start with decisions and measures

Define formula, period, source and owner for every critical measure. Different views can all be valid when their purpose is explicit.

Conflict appears when one label hides different rules.

The operational system records the event, the warehouse reconciles history and BI presents the relevant view.

Users should see lineage, freshness and quality status. Errors go to a known owner rather than a local copy.

This creates a reliable foundation for analytics and future AI.

First step

We will define the process, data, risks and criteria for making an evidence-based scaling decision.

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