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

# Knowledge Feature Types in Studio

> Define reusable knowledge feature types in Kodexa Studio that capture characteristics extracted from documents and attached to knowledge items.

Knowledge Feature Types define the attributes or characteristics that can be extracted from documents and attached to knowledge items. They provide a reusable vocabulary of features across your organization.

![Knowledge Feature Types page showing list of configured feature types](https://mintcdn.com/kodexa/SVf0ISVKA896iPUT/images/studio/organization/org-knowledge-feature-types-light.png?fit=max\&auto=format\&n=SVf0ISVKA896iPUT\&q=85\&s=0364573490bb61b40b2f5a393e87f6bd)

## What are Knowledge Feature Types?

A feature type defines a specific kind of information that can be extracted from documents and associated with knowledge items. For example:

* **Effective Date** — A date feature extracted from contracts
* **Total Amount** — A currency feature extracted from invoices
* **Signatory Name** — A text feature identifying document signers

Feature types are defined at the organization level and can be referenced across multiple projects.

## Managing Feature Types

### Creating a Feature Type

**1. Click Add Feature Type**

Open the creation form from the Knowledge Feature Types page.

**2. Define Properties**

Set the name, data type, description, and any validation rules for the feature type.

**3. Save**

The feature type becomes available for use in knowledge extraction across all projects.

![Feature Type creation form showing name, data type, and property configuration](https://mintcdn.com/kodexa/SVf0ISVKA896iPUT/images/studio/organization/org-knowledge-feature-types-light.png?fit=max\&auto=format\&n=SVf0ISVKA896iPUT\&q=85\&s=0364573490bb61b40b2f5a393e87f6bd)

> [!NOTE]
>
> For more details on how feature types integrate with the knowledge extraction pipeline, see the [Knowledge Feature Types concepts](https://developer.kodexa.ai/concepts/knowledge_feature_types.md) documentation.


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