The 52°North SOS implements only a subset of the O&M data format. To support SOS users that have constraints by either technical oder domain specifics, it would be useful, if users could just implement a simple encoding (for example to support their own CSV or JSON data format) and upload a compiled jar file to the SOS with a browser-based user interface. Then a client selects the newly available response format to retrieve the data in a new format. As an extension it would be very useful to researchers and data maintainers in the hydrological and meteorological domain to have the SOS server deliver WaterML2.0 Standards Working Group">WaterML2.0 encoded time-series. Based on the SOS adminstrator project, the desired encodings could be prepared as .jar-files and added via a web frontend.