Overview of DMPonline (http://dmponline.dcc.ac.uk) given on 20 May 2014 at workshop on Writing Data Management Plans preceding OpenAIRE/COAR 2014 in Athens, Greece. The workshop took place in the context of the Horizon 2020 Data Pilot and in particular the guidelines on data management (http://ec.europa.eu/research/participants/data/ref/h2020/grants_manual/hi/oa_pilot/h2020-hi-oa-data-mgt_en.pdf). The slides feature screenshots of the Horizon 2020 template in DMPonline, which is based on annexes to that guide.