Single Source of Truth
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In Information systems, Single Source Of Truth (SSOT) refers to the practice of co-locating in one area only (e.g. one cell of one row of one table of one database) any data that can be referred to by any of the other federated applications present within the overall enterprise. Deployment of this architecture is becoming increasingly important in enterprise settings where incorrectly linked duplicate or denormalized data (a direct consequence of intentional or unintentional denormalization of the data model) poses a risk for retrieval of outdated, and therefore, incorrect information. A common example would be the electronic health record, where it is imperative to accurately identify patient identity against a single referential repository, which acts as the SSOT. Duplicate representations of data within the enterprise would be implemented by the use of pointers rather than duplicate database tables, rows or cells. This ensures that data updates to the authoritative location are comprehensively distributed to all federated database constituencies of the larger overall enterprise architecture.
SSOT systems provide data that are authentic, relevant and referrable.
[edit] SSOT Categories
- Party SSOT
- Product SSOT
- Partner SSOT
- Geo SSOT
- Campaign SSOT
- Services SSOT
