# C4 Diagram

<figure><img src="https://content.gitbook.com/content/aNbtXAm2MUsbrMlAEZb1/blobs/2wHuowBtuPp4YuVFPExH/C4Diagram.png" alt=""><figcaption><p>C4 Diagram</p></figcaption></figure>

## Create C4 Diagram

To create a C4 Diagram:

1. Select first an element where a new C4 Diagram to be contained as a child.
2. Select **Model | Add Diagram | C4 Diagram** in Menu Bar or select **Add Diagram | C4 Diagram** in Context Menu.

## C4 Model

To create a C4 Model (model element only) by Menu:

1. Select an Element where a new C4 Model to be contained.
2. Select **Model | Add | C4 Model** in Menu Bar or **Add | C4 Model** in Context Menu.

## Element (Person, Software System, Container, Component)

To create a C4 element:

1. Select **Person, Software System, Container, Component or Element** in **Toolbox**.
2. Drag on the diagram as the size.

You can use **QuickEdit** for element by double-click or press `Enter` on a selected element.

* **Name** : Edit name.
* **Add Note** : Add a linked note.

You can edit `description` or `technology` properties in **Property Editor**.

> An element is shown as a dashed boundary if it is shown in a diagram which is one of children of the element.

> If you need elements other than Person, Software System, Container or Component, you can use (general) **Element** in Toolbox for Deployment Node, Infrastructure Node, etc.

## Relationship

To create a relationship:

1. Select **Relationship** in **Toolbox**.
2. Drag from an element and drop on another element.

You can use **QuickEdit** by double-click or press `Enter` on a selected relationship.

* **Name** : Edit description.
* **Add Note** : Add a linked note.

You can edit `description` or `technology` properties in **Property Editor**.