(1) The planning of the weighing procedure is done in an ELN, including the calculation of the target weight for a specific batch of a sample. (2) The information on the desired weighing procedure is then transferred to a mobile device. This creates the definition of a weighing task that is then managed by the specially developed app. (3) The weighing of the target amount with a suitable balance. This step is supported by the app which also holds information about the task. (4) After weighing the target amount, the mobile device is used to take a picture of the amount given on the display of the balance. The app uses this image and transforms the relevant data i.e. weight into a digital number using embedded optical character recognition (OCR) techniques. (5) In the last step of the process, the digitized value gained from the app is cross checked by the user and sent to the ELN. The information about the task can then be used by the ELN to store the obtained values, associating them with the sample's corresponding ELN entry.