An ordering system for a business includes an ordering terminal, a queue module, an order execution module, and an agent. The ordering terminal receives a first order from a first person. The queue module stores data representing the first order. The order execution module conveys the first order to the point of sale terminal. The agent is installed on a point of sale terminal and selectively sends user interface events to a point of sale application executing on the point of sale terminal. The order execution module conveys 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.