> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/design-data-management-and-exchange/classification-system/comparing-classification-systems.md).
# 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.
How to do a comparison:
In the main ICS window, click the  button.
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).
That’s it! Now you can easily compare the structure and contents of the two tables.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.besmart.software/design-data-management-and-exchange/classification-system/comparing-classification-systems.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.