How to use evaluations in vendor due date analysis

Hi,

Could you please brief me about evaluations and how to configure the evaluations in Accounting-FI- AP-Information system-Tools-Configur menu.

I want to use this option for due date analysis for vendor open item for grouping the vendor open item with different age buckets like 0-59 days,60-99 days due.

Regards,

Vunnam