# Cardinality Reduction

> A technique for limiting the distinct label values a metric carries, so its storage and queries stay bounded.

Record: `lexicon:cardinality-reduction`
Kind: technique
Layer: [Observability](https://banes-lab.com/records/layer/observability.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-cardinality-reduction

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Alert on Critical Failure](https://banes-lab.com/records/lexicon/alert-on-critical-failure.md) and before [Sampling and Aggregation](https://banes-lab.com/records/lexicon/sampling-and-aggregation.md).

## Category

- [Observability / Auditability / Traceability](https://banes-lab.com/records/lexicon-category/observability-auditability-traceability.md)

## Refactors

- [Observability Noise](https://banes-lab.com/records/architecture/observability-noise.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)