---
canonical: https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/
title: Core concepts
description: Learn the building blocks of Amplience schema design with practical examples for text, numbers, lists, media, validation, defaults, localization, and delivery keys.
audience: Developer
date_published: 2026-05-11
date_modified: 2026-06-01
---

# Core concepts

These examples show how to model common field types and schema behaviors so you can create content types that are easier to author, validate, and deliver.

## What you'll learn

In this section, you'll find examples for:

- Basic field types such as text, numbers, lists, and media
- Validation rules that help keep content consistent
- Default values that speed up content creation
- Localization patterns for regional or market-specific content
- Delivery keys for easier content retrieval
- Techniques for combining schemas and building reusable structures
- Conditional logic for adapting forms to author input

## Explore the examples

- [Text](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/text)
- [Numbers](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/numbers)
- [Lists](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/lists)
- [Media](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/media)
- [Validations](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/validations)
- [Default values](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/default)
- [Localization](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/localization)
- [Delivery key](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/delivery-key)
- [Multiple delivery keys](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/multiple-delivery-keys)
- [Conditionals](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/conditionals)
- [Combine schemas](https://amplience.com/developers/docs/schema-reference/schema-examples/core-concepts/combine-schemas)

## Related pages

To understand the schema features used in these examples, see:

- [Data types](https://amplience.com/developers/docs/schema-reference/data-types)
- [Validation](https://amplience.com/developers/docs/schema-reference/validation)
- [Conditionals](https://amplience.com/developers/docs/schema-reference/conditionals)
- [Media](https://amplience.com/developers/docs/schema-reference/media)