Single source of truth
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A single source of truth, often abbreviated as SSOT is a discipline or pragmatic approach to store data in only one place (See 3-2-1 Backup Rule )[1]. This one place, doesn't mean that the data has only one copy, but the way data being retrieved and presented are always going through a single channel, often managed by a version control system.
The Entropy Pool
To relate Single source of truth in physical reality, the notion of a shared clock, or more technically, the idea of a common entropy pool, is essential to achieve this goal.
References
- ↑ The 3-2-1 backup rule
- There should be 3 copies of data
- On 2 different media
- With 1 copy being off site
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