US Patent 11194717 Facts control and evaluating card definitions using cached facts

A card engine may dynamically configure content for display via user equipment (UE). A rules engine may provide constructs to the card engine in the form of card definitions, which the card engine may evaluate using facts obtained from a facts controller. The card engine may create a hierarchy of containers, which are logical abstracts for containing cards. The containers in the hierarchy, which may be organized as a tree, may contain card definitions according to respective themes determined by the card engine. Variants may be assigned weights which can be changed dynamically based on factors such as user behavior, account condition, promotions or offerings. The card having the highest weight within its container is advanced up the tree. When a card reaches the top level of the tree, it may be formatted for display via the user interface and transmitted to the UE accordingly.