# Layer edge kinds

> Each layer edge kind is listed with its definition and the topology edges that carry it.

Page: Ontology · Schema
Canonical: https://banes-lab.com/ontology/schema#the-vocabulary-layer-edge-kind

Listed in [Ontology · Schema](https://banes-lab.com/api/pages/ontology/schema.md), after [Resolution mechanisms](https://banes-lab.com/ontology/schema/the-vocabulary-resolution-mechanism.md) and before [Example shapes](https://banes-lab.com/ontology/schema/the-vocabulary-example-shape.md).

Each layer edge kind is listed with its definition and the topology edges that carry it.

### feeds

Details

Definition
An edge along which one layer's output becomes the next layer's input.

Edges
[Computation Core → Execution Core](https://banes-lab.com/records/layer/computation-core.md), [Resource Core → Execution Core](https://banes-lab.com/records/layer/resource-core.md), [Execution Core → Structural Core](https://banes-lab.com/records/layer/execution-core.md), [Structural Core → Human Factors](https://banes-lab.com/records/layer/structural-core.md), [Structural Core → Evolution Principles](https://banes-lab.com/records/layer/structural-core.md), [Evolution Principles → Human Factors](https://banes-lab.com/records/layer/evolution-principles.md)

### feedback

Details

Definition
An edge that returns a layer's results to the layer that feeds it.

Edges
[Structural Core → Execution Core](https://banes-lab.com/records/layer/structural-core.md)

### cross-cuts

Details

Definition
An edge from a cross-cutting domain to the structural core it applies across.

Edges
[Correctness Core → Structural Core](https://banes-lab.com/records/layer/correctness-core.md), [Security Core → Structural Core](https://banes-lab.com/records/layer/security-core.md), [Performance Core → Structural Core](https://banes-lab.com/records/layer/performance-core.md), [Contracts Core → Structural Core](https://banes-lab.com/records/layer/contracts-core.md), [Causality Core → Structural Core](https://banes-lab.com/records/layer/causality-core.md), [Declarative Core → Structural Core](https://banes-lab.com/records/layer/declarative-core.md), [Extensibility Core → Structural Core](https://banes-lab.com/records/layer/extensibility-core.md), [Observability → Structural Core](https://banes-lab.com/records/layer/observability.md), [Enforcement Core → Structural Core](https://banes-lab.com/records/layer/enforcement-core.md), [Atomic Boundary → Structural Core](https://banes-lab.com/records/layer/atomic-boundary.md), [Domain Modeling → Structural Core](https://banes-lab.com/records/layer/domain-modeling.md), [Design Patterns Core → Structural Core](https://banes-lab.com/records/layer/design-patterns-core.md)

### observe

Details

Definition
An edge along which one layer reads another layer's state without changing it.

Edges
[Resource Core → Computation Core](https://banes-lab.com/records/layer/resource-core.md)

## Links to

- [Computation Core](https://banes-lab.com/records/layer/computation-core.md)
- [Resource Core](https://banes-lab.com/records/layer/resource-core.md)
- [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
- [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
- [Evolution Principles](https://banes-lab.com/records/layer/evolution-principles.md)
- [Correctness Core](https://banes-lab.com/records/layer/correctness-core.md)
- [Security Core](https://banes-lab.com/records/layer/security-core.md)
- [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
- [Contracts Core](https://banes-lab.com/records/layer/contracts-core.md)
- [Causality Core](https://banes-lab.com/records/layer/causality-core.md)
- [Declarative Core](https://banes-lab.com/records/layer/declarative-core.md)
- [Extensibility Core](https://banes-lab.com/records/layer/extensibility-core.md)
- [Observability](https://banes-lab.com/records/layer/observability.md)
- [Enforcement Core](https://banes-lab.com/records/layer/enforcement-core.md)
- [Atomic Boundary](https://banes-lab.com/records/layer/atomic-boundary.md)
- [Domain Modeling](https://banes-lab.com/records/layer/domain-modeling.md)
- [Design Patterns Core](https://banes-lab.com/records/layer/design-patterns-core.md)