# observability

> measure of how well internal states of a system can be inferred from knowledge of its external outputs. The observability and controllability of a system are mathematical duals

**Wikidata**: [Q1369844](https://www.wikidata.org/wiki/Q1369844)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Observability)  
**Source**: https://4ort.xyz/entity/observability


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)