The User Interface (UI) is a common server-client application that can be used to configure the ELN-to-ELN data exchange. This includes the registration process of ELNs to ELNdataBridge and the user-friendly mapping of the content of two ELNs, driven by a data parser in the backend, without expecting coding skills from the users (Figure ). It is based on Django, a robust Python framework. Due to the specifications of SimpleDomControl, a Python/Javascript framework and Django extension, the architecture of the system was developed strictly according to a Model-View-Controller pattern. As a data storage component a SQL database is available. Django enables a database-independent design, capable of interfacing with various SQL databases. However, by default, it is configured to use a PostgreSQL database.