# Architectural Contract Algebra

> <Classify architectural force> → <Declare boundary> → <Define contract> → <Choose pattern> → <Bind implementation> → <Verify invariant> → <Observe runtime> → <Govern evolution>

Record: `algorithms:architectural-contract-algebra`
Kind: algorithm
Canonical: https://banes-lab.com/ontology/algorithms#algorithms-architectural-contract-algebra
Closure: https://banes-lab.com/json/records/algorithms/architectural-contract-algebra/closure

Listed in [Algorithm contracts](https://banes-lab.com/api/records/algorithms.md), after [Universal Architectural Concern Template](https://banes-lab.com/records/algorithms/universal-architectural-concern-template.md) and before [Manifest-Driven Documentation](https://banes-lab.com/records/algorithms/manifest-driven-documentation.md).

## Domain

- [Architecture](https://banes-lab.com/records/algorithms-domain/architecture.md)

## Tier

- [leaf](https://banes-lab.com/records/vocabulary/domain-tier-leaf.md)

## Principle

- [Design by Contract](https://banes-lab.com/records/architecture/design-by-contract.md)

## Composes

- [Domain Boundary](https://banes-lab.com/records/algorithms/domain-boundary.md)
- [Transaction Boundary](https://banes-lab.com/records/algorithms/transaction-boundary.md)

## Force

- [Architecture evolution](https://banes-lab.com/records/force/architecture-evolution.md)
- [Contract compatibility](https://banes-lab.com/records/force/contract-compatibility.md)
- [Correctness verification](https://banes-lab.com/records/force/correctness-verification.md)
- [Modularity](https://banes-lab.com/records/force/modularity.md)

## Linked from

- [Contracts / Interfaces / Compatibility](https://banes-lab.com/ontology/principles/architecture-category-contracts-interfaces-compatibility.md)
- [Architecture](https://banes-lab.com/ontology/algorithms/algorithms-domain-architecture.md)
- [Architecture relationships](https://banes-lab.com/ontology/algorithms/algorithms-domain-arch-relationships.md)
- [Domain tiers](https://banes-lab.com/ontology/schema/the-vocabulary-domain-tier.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)