Operationalized definitions of non-functional requirements on automated production facilities to measure evolution effects with an automation system

Production facilities are systems under constant evolution due to frequent changes of requirements and unforeseen incidents. Complex interrelations within the facility's physics and the control software may cause unintentional changes in its behavior after performing modifications. In order to detect such effects, we present, based on a detailed literature review, definitions of nonfunctional requirements on production facilities. The definitions are operationalized, when necessary, to allow an automatic examination of the fulfillment of requirements. This can be done by using dynamic information available in typical automation systems of production facilities. We show which information can be used for an automatic examination and which evolution scenarios affect the defined requirements.