> For the complete documentation index, see [llms.txt](https://docs.eximee.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eximee.com/documentation/documentation-en/budowanie-aplikacji/aplikacja-biznesowa/porownywanie-zmian.md).
# Comparing changes
Comparing changes in application elements enables quick checking of 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 compatibility,
* 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.
***
## Tab **Difference** – comparison of versions of the same element
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 choose two versions: “left” and “right”.
* The system presents the differences between the versions – these may be changes in content, code, structure, or properties.
Figure 1. Artifact comparison in versions 1.5 and 1.9
{% hint style="info" %}
**Supported element types:**
* forms
* composite components
* business components
* scripts
* script validators
* script tasks
{% endhint %}
This functionality 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
Allows you to compare 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 2. Artifact comparison window
The system analyzes dependencies and presents a list of differences.
Figure 3. Comparison of two exported artifacts
**Types of differences detected:**
* ➕ **New dependency** – occurs only in the second file.
* ➖ **Removed dependency** – occurred only in the first file.
* 🔁 **Dependency version difference** – the dependency concerns 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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