# Comparing classification systems

**Side-by-side comparison of classifications**

The “Compare” function lets you visually compare tables from two different classification systems or two different tables from the same system. It is useful especially, but not only, when creating a new (custom) classification system.

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FhJbtamPU5T2xZJbRCvIQ%2F0.jpeg?alt=media)

How to do a comparison:

In the main ICS window, click the ![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2Fu2iKJJo7FY0dNWElMv2A%2F1.jpeg?alt=media) button.

<figure><img src="https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FfHnffVvnn6fA3Qw5CAO8%2FCompare%20CS.jpg?alt=media&#x26;token=f959af65-9d58-4756-9d79-df93c624c14c" alt=""><figcaption></figcaption></figure>

In the “Compare Classification Systems” window that opens, pick the systems and tables you want to compare – one on the left (1) and one on the right (2).

<figure><img src="https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FQsTlJpM89jSEnRjwHh5y%2F2%20Compare.jpg?alt=media&#x26;token=5be943e1-1ae9-4595-987a-9fb9c34cba33" alt=""><figcaption></figcaption></figure>

That’s it! Now you can easily compare the structure and contents of the two tables.