A feature configuration analysis tool greatly reduces time, cost, and other resource expenditures associated with identifying permissible feature configurations for a product line so that vendors can offer consumers highly customizable products. Accordingly, the vendor may offer the consumer an extensive selection of features for a product, receive from the customer a customized selection of the features, and implement those features for the customer. A vendor may embed the feature configuration analysis tool into a user interface that enables consumers to consider feature configurations prior to purchasing a product. The feature configuration analysis tool provides a lightweight and efficient approach to rapidly determine permissible feature configurations for a product line, and verify the validity of a user requested combination of features.