Dosing system and method for the dosing of a medium

A dosing system with a dosing control unit (4), comprising

• at least one exchangeable container (2) for holding a medium to be dosed,
• a dosing valve (3, 3′) connected to the at least one exchangeable container (2),
• at least a first part of the dosing valve (3, 3′) that comes into contact with the medium is a first exchangeable system component (7, 10) and includes a first identification memory for storing only a first machine-readable code for first identification purposes, each of the first exchangeable system component (7, 10) and the at least one exchangeable container (2) being exchangeable independently of one another;
• wherein the at least one exchangeable container (2) includes a second identification memory for storing only a second machine-readable code for second identification purposes,
• wherein the at least one exchangeable container and the first exchangeable system component are disposable independently of one another,
• wherein the dosing control unit (4) is connected to a communication unit (5) capable of reading the codes,
• wherein the at least first part of the dosing valve (3, 2′) that comes into contact with the medium is disposable independently of the at least one exchangeable container, and
• wherein the communication unit (5) has a read connection (22) to the at least one exchangeable container and the first exchangeable system component for independently identifying the at least one exchangeable container and the first exchangeable system component based on the first machine-readable code or the second machine-readable code;
• wherein the first machine-readable code and the second machine-readable code represents only information for verifying permissibility of using the at least one exchangeable container and the first exchangeable system component with one another.