# Atlas / Graph Model

> Canonical HTML: https://initkoa.org/technology/ariane/atlas/graph-model
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# Atlas / Graph Model

Atlas represents each application as a directed graph of UI states and transitions.

This page focuses purely on the structural model: how states and transitions form a graph, independent of storage format or ontology details.

## Basic Definitions

- **State**
A node in the graph representing a specific UI configuration (screen, dialog, view, etc.).

- **Transition**
A directed edge from one state to another, representing a user action that changes the UI (e.g., clicking a button, selecting a menu item, hitting a key).

- **Graph**
For a given application context (app ID, version, platform, locale), the set of all states and transitions discovered by Theseus.

## Simple Example

A small example from a generic application: