# Interface Segregation Principle (ISP) / Interface Proliferation

> "interface-segregation" (structural-core layer) is traded against "Interface Proliferation" (structural-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Interface Proliferation" and choosing an explicit operating point.

Record: `tension:interface-proliferation-interface-segregation-principle-isp`
Kind: tension
Canonical: https://banes-lab.com/ontology/schema#tension-interface-proliferation-interface-segregation-principle-isp

## tensions-with

- [Interface Segregation Principle (ISP)](https://banes-lab.com/records/arch/interface-segregation.md)
- [Interface Proliferation](https://banes-lab.com/records/lex/interface-proliferation.md)