> ## Documentation Index
> Fetch the complete documentation index at: https://docs.auxia.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Product Concepts

This section explains the core building blocks of the Auxia platform — what each concept is, how it works, and how the pieces fit together.

***

## The Auxia Hierarchy

Everything in Auxia connects through a clear hierarchy:

```
Goals (What you want to achieve)
   ↓
Journeys (How you organize your efforts)
   ↓
Treatments (What users actually see)
   ↓
User Actions (Tracked → contributes to Goals)
```

Every journey is linked to a goal, and every treatment belongs to a journey. This structure enables attribution, measurement, and AI-powered optimization across every personalized experience you deliver.

***

## Core Concepts

| Concept                                       | What It Is                                                           |
| --------------------------------------------- | -------------------------------------------------------------------- |
| [Treatments](/concepts/treatments)            | A single personalized message or experience delivered to a user      |
| [Journeys](/concepts/journeys)                | A coordinated set of treatments working toward a common goal         |
| [Goals](/concepts/goals)                      | A measurable business outcome you want to achieve                    |
| [Surfaces](/concepts/surfaces)                | A location in your app where treatments can appear                   |
| [Treatment Types](/concepts/treatment-types)  | The format and structure a treatment uses                            |
| [Data Fields](/concepts/data-fields)          | User and behavioral variables used for personalization and targeting |
| [Destinations](/concepts/destinations)        | A delivery channel that sends treatments to users                    |
| [Analytics](/concepts/analytics)              | How Auxia measures the impact of your treatments and journeys        |
| [Agentic Capabilities](/concepts/ai-insights) | AI-powered agents for decisioning, analysis, and proactive insights  |

***

## How the Concepts Relate

```
[Goal]
  └── [Journey] (linked to Goal)
        └── [Treatment] (belongs to Journey)
              ├── uses [Treatment Type] (defines format/fields)
              ├── appears on [Surface] (defines placement)
              ├── delivered via [Destination] (defines channel)
              └── targets using [Data Fields] (guardrails + personalization)

[Analytics] measures Journey and Goal performance
[Agentic Capabilities] powers decisioning and surfaces insights
```