> For the complete documentation index, see [llms.txt](https://docs.securemetrics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.securemetrics.io/crq-pro/core-concepts/components.md).

# Components

A **component** is a reusable piece of a FAIR model: a threat event frequency you have researched, a standard loss table, a vulnerability estimate for a shared control environment. Define it once, link it into any number of scenarios, and update it in one place.

## Component kinds

A component can stand in for any slot in the taxonomy:

* **Loss Event Frequency**
* **Threat Event Frequency**
* **Vulnerability**
* **Loss Magnitude**
* **Loss Amount**
* **Secondary Risk**
* Leaf estimates: **Frequency**, **Probability**, **Magnitude**, **Capability**

## Two libraries

| Library       | Scope                                         |
| ------------- | --------------------------------------------- |
| **Workspace** | Available only inside the current workspace.  |
| **Global**    | Shared across all workspaces on this machine. |

Both are managed on the **Components** page, with folders, search, tags, and the same organize/duplicate/rename/delete actions as scenarios.

## Linking a component into a scenario

In the scenario editor, a factor slot can reference a component instead of holding inline values. The link is **live**: when you edit the component, every scenario using it picks up the change on its next simulation.

{% hint style="warning" %}
Because links are live, editing a widely used component changes the results of every scenario that references it. Check where a component is used before making material changes, or duplicate it and edit the copy.
{% endhint %}

## Import and export

Individual components, component folders, or the whole library can be exported to a `.cqx` bundle and imported elsewhere, for example to share a calibrated threat library with a colleague. See [Import, export and backup](/crq-pro/guides/import-export.md).