<commit_before>---
title: Data Structure
layout: default
---

This document covers the overall architecture of Sagefy's data storage. This data structure allows Sagefy to be both open-content as well as highly adaptive and flexible while maintaining practicality.

<style>img { max-width: 100%; }</style>
![Data Structure Example: Statistics](https://docs.google.com/drawings/d/1idC1i8udNsD5C1yj1K7qKp6cwSkyhwjLXzG-xsXG6gE/pub?w=735&amp;h=280)

Cards
-----

Cards are the smallest entity in the Sagefy data structure system. A card represents a single learner activity.

A card could present information, ask the learner to answer a question, collaborate with a small group to tackle a challenge, or create other cards.

### Card Kinds

Some kinds may include a video, a multiple choice question, or interactive demonstration. For more, see [Data Structure: Card Kinds](/f_data_structure/cards).

### Card Kinds

Some kinds may include:<commit_msg>Remove duplicate header<commit_after>---
title: Data Structure
layout: default
---

This document covers the overall architecture of Sagefy's data storage. This data structure allows Sagefy to be both open-content as well as highly adaptive and flexible while maintaining practicality.

<style>img { max-width: 100%; }</style>
![Data Structure Example: Statistics](https://docs.google.com/drawings/d/1idC1i8udNsD5C1yj1K7qKp6cwSkyhwjLXzG-xsXG6gE/pub?w=735&amp;h=280)

Cards
-----

Cards are the smallest entity in the Sagefy data structure system. A card represents a single learner activity.

A card could present information, ask the learner to answer a question, collaborate with a small group to tackle a challenge, or create other cards.

### Card Kinds

Some kinds may include a video, a multiple choice question, or interactive demonstration. For more, see [Data Structure: Card Kinds](/f_data_structure/cards).

Some tags may include:
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