# Transaction Script Sprawl

> A defect in which business processes are procedural scripts that coordinate validation, persistence and decisions directly.

Record: `architecture:transaction-script-sprawl`
Kind: anti-pattern
Layer: [Enforcement Core](https://banes-lab.com/records/layer/enforcement-core.md)
Severity: discouraged
Scope: state_transaction, correctness_verification, domain_boundary, control_coordination
Canonical: https://banes-lab.com/ontology#architecture-transaction-script-sprawl

Listed in [Architecture principles](https://banes-lab.com/api/records/architecture.md), after [Anemic Domain Model](https://banes-lab.com/records/architecture/anemic-domain-model.md) and before [Fat Controller](https://banes-lab.com/records/architecture/fat-controller.md).

## Repair

- Refactored by: extract_domain_model, extract_use_case, separate_ports, move_rules_to_domain
- Detected by: large_service_method, business_rules_in_controller, repeated_procedure_blocks
- Violated by: Encode business processes as procedural scripts that directly coordinate validation, persistence, external calls, and domain decisions.
- Measured by: procedure length, business rules in handlers
- Enforced by: architecture tests on layer responsibilities, method size limits

## Severity

- [discouraged](https://banes-lab.com/records/vocabulary/severity-discouraged.md)

## Category

- [Anti-patterns](https://banes-lab.com/records/architecture-category/anti-patterns.md)

## Force

- [Control coordination](https://banes-lab.com/records/force/control-coordination.md)
- [Correctness verification](https://banes-lab.com/records/force/correctness-verification.md)
- [Domain boundary](https://banes-lab.com/records/force/domain-boundary.md)
- [State transaction](https://banes-lab.com/records/force/state-transaction.md)

## Negated by

- [Domain Service](https://banes-lab.com/records/architecture/domain-service.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Domain Architecture](https://banes-lab.com/ontology/principles/architecture-category-domain-architecture.md)
- [Severity levels](https://banes-lab.com/ontology/schema/the-vocabulary-severity.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)