Patients perspectives were represented in work of WP4 in different ways, firstly the organisation 'Action against Medical Accidents' (AWA), an independent English charity promoting better patient safety and justice for people who have been adversely affected by a medical accident were represented in the over all project meetings, secondly two patient representatives were asked to review and comment on the vocabulary and a draft of this report. Thirdly a range of international and national patient interest groups and organisation representatives participated the SImPatIE Consensus Conference in Luxembourg.