A service system in the field of collecting human breast milk or in the field of medical drainage has a base unit (2) assigned to an individual or an entity and at least one mobile data storage medium (10). A user can connect the mobile data storage medium (10) to products (80, 82, 83) in said field and to the base unit (2) in a data-communicating manner. The user can connect the base unit (2) to an external information and data platform (3) in a communicating manner. The system according to the invention provides optimal care and support of users in said field.
