(2) creating and managing weighing tasks using the ELN's user interface. The ability to create weighing tasks using information stored in the ELN was gained by adding the option to assign planned samples to a new interface component. This component presents open tasks for the app within the ELN and can be used to define the mode of the weighing task (single scan or double scan, explained in detail in the next chapter) (Figure ). The assignment of a sample to the task area allows elegant reuse of all information that is relevant for a weighing procedure as available in the ELN, such as the identifiers of the sample (names, ID), the structure of the sample's molecule and the desired mass to be gained in the weighing step. The latter is gained from the so-called target value of the sample. This task management interface is then also used for further management of the incoming finished tasks: When a weighing task is finished and transmitted from the app to ELN, the interface gives a summary of the conducted task. The results of the weighing task can therefore be directly added to the so-called real value of the sample, allowing the researcher to track differences of planned and obtained masses in the weighing procedure.