deltaeach
Deltaeach is a term used in information technology and data management to describe a technique for representing and propagating changes at the level of individual elements within a collection. It emphasizes per-element deltas rather than a single coarse delta for the whole dataset.
The word delta comes from mathematics meaning change, and each indicates per-element granularity. The term is
In practice, deltaeach involves computing, storing, or transmitting a delta for each element that has changed
Applications include collaborative editing, database replication, sensor networks, and machine learning pipelines that update models based
Advantages include reduced bandwidth and faster updates for large collections; drawbacks include added bookkeeping, robustness concerns
See also delta encoding, change data capture, incremental learning, and event sourcing.