A Single Source of Truth (SSOT) is the practice of structuring data so that every data element is stored, mastered, and edited in exactly one location. One version of the truth that everyone in the business trusts. There are no conflicting reports, no “almost right” numbers, and most importantly, no second guessing.
It acts as an authoritative, centralized repository, ensuring all stakeholders make decisions using the exact same, up-to-date information.
Key Concepts:
- Eliminates Data Silos: Prevents separate departments from keeping conflicting or outdated versions of the same information.
- Prevents Duplication: Replaces the manual copying and pasting of data—often seen with messy spreadsheets—with a single reference point that updates automatically.
- System of Reference: By referencing a single trusted location, organizations avoid confusion over which file or metric is “correct”.
A single source of truth centralizes data and becomes the reliable reference point for how decisions are made.
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