A host command protocol includes a variety of different types of host commands and associated command parameters.

The command transmitter can thus be used to select (50, 52, 54, 58) a command receiver which is to be matched; the selected command receiver is matched (56) with the command transmitter to which it is allocated or with another command transmitter.

Several command receivers are temporarily allocated (48) to a command transmitter.

Disclosed is a method for matching a command transmitter and a command receiver which can be part of a group comprising several command transmitters and several command receivers that communicate by means of the same protocol.

The interface is configured to enable buy orders and sell orders to be entered.

The transmission of control orders from the order transmitter to the order transmitter-receiver or from said order transmitter-receiver to others elements is carried out by means of frequency modulated radioelectric signals.

After said temporary allocation, the command receivers only respond to the command transmitter to which they are allocated.

Such designated market makers create a virtual guarantee order book for each permissioned order sending firm.

A selective aiming algorithm is applied to the set of orders in order to generate a smaller set of orders.

Described embodiments include creation and maintenance of Physician Order Sets and Hospital Order sets.

execution of credit transfers, including standing orders.

joint algebraic moment of orders q and s

joint moment of orders q and s about the origin

joint moment of orders q and s

joint algebraic moment of orders q and s