...
Project-specific testing reports can be viewed via a JIRA project's Reports section. The following testing reports are made available with Zephyr for JIRA:
Open the Reports section and scroll to the section called Other. Select one of the available report templates and you will be able to custom the data observed on the report with the options presented.
...
Test Execution Burndown Chart Anchor burndown burndown
The Test Execution Burndown Chart will display cycle execution information in terms of a timeline for the selected project and version.
...
Top Defects Impacting Testing Anchor topdefects topdefects
The Top Defects Impacting Testing report will show a list of the defects which are stopping the most amount of executions from passing. This is purely numerical and does not take priority into account.
...