# Type Metadata

> Descriptive data about the types of a structure's fields, available for inspection at runtime.

Record: `lexicon:type-metadata`
Kind: artifact
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-type-metadata

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Time Cost](https://banes-lab.com/records/lexicon/time-cost.md) and before [Undo/Redo](https://banes-lab.com/records/lexicon/undo-redo.md).

## Category

- [Core Vocabulary](https://banes-lab.com/records/lexicon-category/core-vocabulary.md)

## Required by

- [Self-Describing Structures](https://banes-lab.com/records/architecture/self-describing-structures.md)
- [Introspection](https://banes-lab.com/records/architecture/introspection.md)

## Linked from

- [Metadata / Self-Description / Declarative Systems](https://banes-lab.com/ontology/principles/architecture-category-metadata-self-description-declarative-systems.md)
- [Metaprogramming / Language-Oriented Architecture](https://banes-lab.com/ontology/principles/architecture-category-metaprogramming-language-oriented-architecture.md)
- [Core Vocabulary](https://banes-lab.com/ontology/lexicon/lexicon-category-core-vocabulary.md)