Abstract: A system for providing variability and materialization over links connecting product line resources is disclosed herein. The system may include a user interface configured to issue a request for a product-line resource given in a specified product configuration context, responsive to a user selection, wherein the product configuration contains one or more features of the feature model, wherein the product line resources are stored on one or more databases and are further connected between themselves via links, each associated with a respective variability, based on the feature model and the product line resources connected via the links; and a resources fetcher configured to retrieve the resources requested in view of the specified product configuration by providing the links associated with the variability of the specified product configuration.