# Late-Data Handling

> The degree to which windowing by event time must reckon with events that arrive after their window has closed.

Record: `lexicon:late-data-handling`
Kind: quality-attribute
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-late-data-handling

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Event Time](https://banes-lab.com/records/lexicon/event-time.md) and before [Unbounded Accumulation](https://banes-lab.com/records/lexicon/unbounded-accumulation.md).

## Category

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/records/lexicon-category/streaming-pipeline-dataflow-processing.md)

## In tension with

- [Windowing](https://banes-lab.com/records/architecture/windowing.md)
- [Windowing / Late-Data Handling](https://banes-lab.com/records/tension/late-data-handling-windowing.md)

## Linked from

- [Streaming / Pipeline / Dataflow Processing](https://banes-lab.com/ontology/principles/architecture-category-streaming-pipeline-dataflow-processing.md)
- [The resolutions](https://banes-lab.com/ontology/schema/the-resolutions.md)