The Table Grid Editor add-on for JIRA allows you to use JIRA for many different use cases including:
Test plan execution
Quote and invoice management
Survey result data collection
Multi level select lists on the Customer Portal
We've included 3 types of custom fields in the Table Grid:
Table Grid Editor - allows to create grids which are editable. You can combine and manage data from multiple systems into one editable and highly customizable table grid. Users can update their data directly in the external database.
Table Grid Reader - allows to display results of an arbitrary SQL query as a grid in the context of an issue.
Multi Level Cascade Field - allows to create an unlimited number of select lists in a single custom field. Helps to select multiple values using more than two select lists who depend on each other. You can make the choice of the values from the lists dependent on each other.