# Architecture principles whose scope is configuration

> 5 records

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

## Entries

- [Metadata-Driven Design](https://banes-lab.com/records/architecture/metadata-driven-design.md): An approach in which behavior such as forms, routes or plugins is generated from validated metadata instead of written case by case.
- [Declarative Configuration](https://banes-lab.com/records/architecture/declarative-configuration.md): A design rule that a system's settings are declared as validated data, and the system configures itself from that data.
- [Domain-Specific Language (DSL)](https://banes-lab.com/records/architecture/domain-specific-language.md): A design pattern that expresses a domain's rules or workflows in a small language with a defined grammar and a validator.
- [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.
- [Secure by Default](https://banes-lab.com/records/architecture/secure-by-default.md): A design rule that every setting ships in its most restrictive safe state, and weakening one requires an explicit opt-in.