> For the complete documentation index, see [llms.txt](https://docs.qatts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.qatts.com/v-2.0/get-to-start-automating-web-applications/automated-test-execution/untitled-1/untitled/data-assertion.md).

# 3.2.1.3.3 Data Assertion

Data assertion nothing but validating the extracted data.

Click on the response schema tab. You will see the previously added response schema

Update the schema with assert operation and assert data.

![](/files/-MbeUB5hdn_4j64sHc7B)

In the above case we gave the comparison data statically we can also parameterize the assert data to dynamic data

To do the dynamic data you need to follow the QATTS parameterized syntax as we used in request template

```
Syntax: ${ProductElementName}
```

![](/files/-MbeUB5iyLdRgWNab0XD)

Click on **Save** button and then click on **Test** button

Click on the Assert Result tab. You can see status of every object.

![](/files/-MbeUB5japCZHm3W28j8)