# Structure

In Violet, you can view your requirements according to a desired structure: either by their **Hierarchy** or by their [Systems](/features/requirements/systems.md). Either structure is available in [Table, Graph, or Document views](/features/requirements/views.md).

## Hierarchy

To view your requirements in Hierarchy view, select **Hierarchy** in the drop-down menu at the top of the screen. This will structure requirements according to the hierarchy in which they were defined.

<figure><img src="/files/7M2WjplpgzS1cHLif9pi" alt=""><figcaption></figcaption></figure>

## System

Similarly, select **System** to structure requirements by the [Systems](/features/requirements/systems.md)  and sub-systems to which they belong.

<figure><img src="/files/nmg2Y41bcUYXAMWScwYV" alt=""><figcaption></figcaption></figure>


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