---
title: "New Rule Expressions"
slug: "new-rule-expressions-in-models"
description: "In this documentation article, learn about the newly added rule expressions to Test Modeller!"
tags: ["Test Modeller", "Feature Overviews"]
updated: 2024-09-27T14:51:19Z
published: 2024-09-27T14:51:19Z
canonical: "knowledge.curiositysoftware.ie/new-rule-expressions-in-models"
---

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

# New Rule Expressions in Models

In this documentation article, learn about the newly added rule expressions to Quality Modeller!

[Embedded content](https://www.youtube.com/embed/AYjpSzmM-PU?&wmode=opaque&rel=0)

To find the new **Rule Expressions,** open an existing model and navigate to the **Test Generation tab.**

![](https://cdn.document360.io/77f722a6-2d0a-49fa-8074-572515a6c4b8/Images/Documentation/image-1680708524267.png)

In the **Test Generation tab**, hit the **Rules button** to open the **Edit Node Logic window.**

![](https://cdn.document360.io/77f722a6-2d0a-49fa-8074-572515a6c4b8/Images/Documentation/image-1680708520351.png)

Here you will find the newly added **“AND NOT”** and **“OR NOT” rules.**

![](https://cdn.document360.io/77f722a6-2d0a-49fa-8074-572515a6c4b8/Images/Documentation/image-1680708516885.png)

To learn more about rules, view these documentation articles:

- [**Overview of Rule-Based Test Generation**](/docs/overview-of-rule-based-test-generation)
- **[Ability to Turn On and Off Rules on Models](/docs/ability-to-turn-on-and-off-rules-on-models)**
- **[Rules: Groups and Conditions](/docs/rules-groups-and-conditions)**
- **[Model Rules - Contains in List Rule](/docs/model-rules-contains-in-list-rule)**

## Related

- [Quality Modeller 101](/test-modeller-101.md)
- [Test Case Generation](/test-case-generation-in-test-modeller.md)