# Metrics

> Quantitative measurements a system emits about its state and behavior for monitoring and analysis.

Record: `lexicon:metrics`
Kind: mechanism
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-metrics

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Reachability and Deadlock Analysis](https://banes-lab.com/records/lexicon/reachability-and-deadlock-analysis.md) and before [Contracts](https://banes-lab.com/records/lexicon/contracts.md).

## Category

- [Core Vocabulary](https://banes-lab.com/records/lexicon-category/core-vocabulary.md)

## Required by

- [Model Evaluation](https://banes-lab.com/records/architecture/model-evaluation.md)
- [Observability](https://banes-lab.com/records/architecture/observability.md)
- [Monitoring](https://banes-lab.com/records/architecture/monitoring.md)
- [Elasticity](https://banes-lab.com/records/architecture/elasticity.md)
- [Bottleneck Analysis](https://banes-lab.com/records/architecture/bottleneck-analysis.md)
- [Auto-Scaling](https://banes-lab.com/records/architecture/auto-scaling.md)

## Linked from

- [Model Architecture](https://banes-lab.com/ontology/principles/architecture-category-model-architecture.md)
- [Observability / Auditability / Traceability](https://banes-lab.com/ontology/principles/architecture-category-observability-auditability-traceability.md)
- [Scalability / Performance / Optimization](https://banes-lab.com/ontology/principles/architecture-category-scalability-performance-optimization.md)
- [Self-Healing / Recovery / Deployment Safety](https://banes-lab.com/ontology/principles/architecture-category-self-healing-recovery-deployment-safety.md)
- [Operations Concerns](https://banes-lab.com/ontology/lexicon/lexicon-category-operations-concerns.md)