Systems and methods for providing normalized data to a generic frequent shopper application from an external frequent shopper system

摘要

A data access layer is described that provides an interface between an external frequent shopper system and a generic frequent shopper application. The data access layer includes a frequent shopper access object that provides a set of method interfaces that are customized to the external frequent shopper system. The customized method interfaces provide instructions to the external frequent shopper system to perform frequent shopper program operations requested by the generic frequent shopper application. The data access layer further includes a data object accessible by the generic frequent shopper application for locally storing data retrieved from the external frequent shopper system by the frequent shopper access object in a normalized format.