1. A method of operating a dishwasher comprising: manually inputting model dependent operational parameters of a washing operation into a user interface controller; broadcasting a universal instruction packet of control commands from a main controller, said universal instruction packet including a first set of instructions associated with the model dependent operational parameters and a second set of instructions associated with operating parameters for other dishwasher models, with said second set of instructions being inoperative with the model dependent operational parameters; and performing the washing operation by acting upon the first set of instructions associated with the model dependent operating parameters at the user interface and filtering out the second set of instructions associated with operating parameters for other dishwasher models.