1. An ordering system for a business, the ordering system comprising: an ordering terminal configured to receive a first order from a first person; a queue module configured to store data representing the first order; an order execution module configured to convey the first order to a point of sale terminal; and an agent installed on the point of sale terminal and configured to selectively send user interface events to a point of sale application executing on the point of sale terminal, wherein the order execution module is configured to convey the first order to the point of sale terminal by (i) retrieving the data representing the first order from the queue module and (ii) instructing the agent to send user interface events according to the retrieved data.