# Comparing changes

Comparing changes in application elements allows you to quickly check differences between two versions of the same component or between two exported items. This makes it possible to:

* analyze changes introduced by the team,
* verify dependency consistency,
* prepare components for migration or deployment.

These features are available in the tabs **Difference** and **Compare artifacts**, located in the module **Overview** in Eximee Designer.

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## Tab **Difference** – comparison of versions of the same element

It allows you to compare two versions of the same application element, e.g. a form, script, or composite component.

**How does it work?**

* The user selects an element (e.g. a form) from the list.
* Then they select two versions: the “left” and the “right”.
* The system presents the differences between the versions – these may be changes in content, code, structure, or properties.

<figure><img src="/files/0d6284e009b660c08cd6ae2797f56bfaf0e6d23f" alt=""><figcaption><p align="center"><em><strong>Figure 1.</strong> Artifact comparison in versions 1.5 and 1.9</em></p></figcaption></figure>

{% hint style="info" %}
**Supported element types:**

* forms
* composite components
* business components
* scripts
* script validators
* script tasks
  {% endhint %}

This feature allows for a detailed review of changes before saving a new version, during historical review, or in team collaboration.

***

## Tab **Compare artifacts** – comparison of two exported elements

It enables comparison of two files `.xml` or `.json` with exported application elements – focusing on their **dependencies**.

**How does it work?**

The user drags two files into the field **drag & drop**.

<figure><img src="/files/a22f134b0299b2f6a5fce4238e3144714e94cea7" alt=""><figcaption><p align="center"><em><strong>Figure 2.</strong> Artifact comparison window</em></p></figcaption></figure>

The system analyzes dependencies and presents a list of differences.

<figure><img src="/files/3499120879271551b6b2c62b4ce7f960fca9e6c7" alt=""><figcaption><p align="center"><em><strong>Figure 3.</strong> Comparison of two exported artifacts</em></p></figcaption></figure>

**Types of differences detected:**

* ➕ **New dependency** – appears only in the second file.
* ➖ **Removed dependency** – appeared only in the first file.
* 🔁 **Dependency version difference** – the dependency refers to the same element, but with a different version.

If no differences are detected, the message appears: **“No data to display”**.

#### When to use comparison?

* Before publishing a new version of a component – to make sure what has changed.
* During code review – to assess changes introduced by the team.
* During migration – to compare exports between environments.
* During integration – to make sure dependencies match expectations.


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