Abstract: A rules evaluation engine operable to select optimal content for presentation to the viewer at each presentation opportunity. The engine evaluates segmentation rules associated with each particular content item in parallel, and then selects the best content to be presented. Priorities determined during evaluation sort out which content items will be presented. Real time dynamic enrichment of the decision making context occurs by retrieving additional information required to evaluate the rules. Logging and administrative processes for managing the segmentation rules are also realized.