Cathy Winter is the lead midwife for the PROMPT Maternity Foundation (PMF). She has been a senior labour ward midwife for over twenty years and is now the senior research midwife at North Bristol NHS Trust. For the past eighteen years, as part of a multi-professional team, she has been responsible for the development, implementation and evaluation of local multi-professional obstetric emergencies training for all maternity staff at Southmead Hospital. As founder member of the PROMPT Maternity Foundation, Cathy has been integral to the development and dissemination of the PROMPT training package to many maternity units in the UK and across the world. Timothy Draycott is a Consultant Obstetrician at North Bristol NHS Trust and the obstetric research lead for the PROMPT Maternity Foundation. He has a research interest in patient safety, particularly multi-professional training, simulation, teamworking and quality improvement in maternity care. He has recently held a Health Foundation Improvement Science fellowship to investigate the effects of context on training and simulation.