Most organisations I work with have the same problem — data scattered across dozens of systems, spreadsheets, and databases, with no clear agreement on which number is correct. The sales team has one revenue figure. Finance has another. The CEO asks a simple question and gets three different answers.
This is what happens when a business lacks a Single Source of Truth (SSOT) for its data.
What Is a Single Source of Truth?
A Single Source of Truth is a centralised data architecture where every business metric, KPI, and report is derived from one authoritative data store. When someone needs the revenue number for last quarter, they go to one place — and everyone in the organisation gets the same answer.
In Microsoft Fabric, the SSOT is built on OneLake — a unified data lake that stores all your organisation’s data in one place, governed by consistent rules and accessible by all Fabric workloads.
The Cost of Not Having One
Without a SSOT, organisations pay a hidden tax every day:
- Hours wasted reconciling conflicting reports before meetings
- Wrong decisions made based on stale or incorrect data
- Duplicate data engineering work across multiple teams
- Compliance and audit risks from ungoverned data copies
- Loss of trust in data — people stop using dashboards and go back to spreadsheets
How OneLake Creates a Single Source of Truth
OneLake stores data in open Delta Parquet format, meaning any tool — Power BI, Azure Databricks, Azure Synapse, or custom applications — can read the same data without creating copies. Combine this with Fabric’s unified governance model and you have a platform designed from the ground up for a SSOT architecture.
Getting Started
Building a SSOT does not happen overnight. It requires a clear data strategy, buy-in from business stakeholders, and the right technical architecture. But every journey starts with a single step — usually identifying your most critical business metrics and agreeing on how they should be defined and calculated.
If your organisation is struggling with data inconsistency, I can help you design a roadmap toward a unified data platform. Get in touch to start the conversation.
