The Scientific Software Group (Data Analysis) at the European Synchrotron E.S.R.F. in Grenoble, France, is in charge of maintaining and developing scientific software, viz. for processing and reconstructing X-ray CT data. Thanks to the close cooperation of the chair of X-ray microscopy with SciSoft and with E.S.R.F.'s imaging-beamline ID19, researchers and students from both sides exchange knowledge and develop new concepts (e.g. for in-situ measurements).