Methods and computer systems are provided for data assignment. A computing unit and a data object component for managing a set of data objects are provided. Data objects of the set of data objects can be divided into segments according to selectable criteria. An interface unit may also be provided to interconnect the computing unit and the data object component. The interface unit may be arranged and constructed to include an inventory assignment of segments created in the data object component such that, in case of an assignment inquiry by the computing unit, an assignment of one or more segments being inquired for is carried out in the interface unit.