When looking at Zabbix triggers when adding dependencies on the pop up window you can not always see what host the dependent trigger is on which can make managing dependencies a pain.

You can see it here 

But not on the dependencies pop up window after adding a dependency

This can make managing dependencies in large environments challenging and it would greatly improve usability if it looked something like this 

The same issue is present on the Monitoring > Problems page

This does not tell you which hosts

For better usability it should look like this