To include integer attributes to the database:

1. Navigate to the administration tab and click the link Configure attributes for reports under Project Metrics.
2. Select a maximum of two integer attributes for the artifact types that you would like users to report on. For example "Effort spent." and "Remaining Effort."
3. Click the Submit button.
4. Repeat this sequence of steps to include or update artifact types with an integer attribute to be added to the database for computing burn down charts.