An object of the present invention is to provide an optimization engine, an optimization method, and a program that have excellent extensibility, facilitate effective use of unique characteristics of each access network, and can enhance satisfaction levels of diverse users. An optimization engine according to the present invention includes an objective function of an item intended to be improved, collects parameters from access networks and terminals, and finds a combination of connection destinations that maximizes or minimizes the objective function. By appropriately configuring the objective function, it is possible to control user satisfaction levels, bandwidth utilization rates, costs for use of circuits, and the like.