A system, method and program product are provided for defining an assortment for use in an operative execution system. The method includes assigning a plurality of articles to the assortment for one or more article validity periods, assigning a plurality of stores to the assortment for one or more store validity periods, and releasing the assortment to the operative execution system. Once released to the operative execution system, the articles and the stores are automatically added to and dropped from the assortment based on the validity periods.