Tooltips display information when a user hovers over a field or row in a table. For example, tooltips in the BMC Helix ITSM applications can include information about the people related to the form, such as the requester, customer, or assignee. They can also display data when the user hovers over a row in a table; for example, the relationships table in BMC Helix ITSM provides record details when you hover over the rows.
Best practice You can change the information in a tooltip; use hidden table columns to show data in a tooltip because they reduce the calls back to the system to retrieve record data that you are already displaying.