Methods and systems to analyze aspect rules based on domain coverage of aspect-value pairs are provided. The system receives a first plurality of data items from a database, applies a first plurality of rules to the first plurality of data items to generate a second plurality of data items associated with a first domain, counts the second plurality of data items to determine a total quantity of data items, applies a second plurality of rules to the second plurality of data items to identify a third plurality of data items it associates with a first aspect-value pair, counts the third plurality of data items to determine a first quantity of data items, determines a percentage of coverage for the first aspect-value pair based on the first quantity of data items and the total quantity of data items, and provides the percentage coverage for the first aspect-value pair as an interface element within an interface.