Abstract
Against the background of the discussion about a comprehensive regional mental health care service, the essay discusses the possibility of a comprehensive, transparent and meaningful evaluation. Proposals for how structures, processes, and outcomes may be assessed are presented. We argue for collecting data that are transparent and actionable on all levels of care organisations. The suggested evaluation would be innovative, meaningful for individual patients, services, health care organisations and whole regions, and thus a way for a data-driven ongoing quality improvement.