This book constitutes the proceedings of the 4th workshop on Business Process Model and
Notation BPMN 2012 held in Vienna Austria in September 2012. The BPMN workshop series
provides a forum for academics and practitioners who share an interest in business process
modeling using the Business Process Modeling Notation which is seen by many as the de facto
standard for business process modeling. This year the workshop lasted two days and consisted
of both a scientific and a practitioner event. The six full and three short papers presented
were carefully reviewed and selected from 22 submissions. The workshop applied a thorough
reviewing process during which each paper was reviewed by three Program Committee members. In
addition an extended abstract of the workshop keynote is also included.
