# Architecture principles whose scope is rule

> 1 record

This index as JSON: https://banes-lab.com/json/api/facets/architecture/scope/rule

## Entries

- [Single Source of Truth](https://banes-lab.com/records/architecture/single-source-of-truth.md): A design rule that each fact, rule or configuration value has one owning definition, and every other value is derived from it.