Developing a modelling framework for aligning the human aspects to the physical system in large complex systems

Rail organizations are very complex systems involving both the physical aspects of the rail system and the human aspects of the operating organization. Introduction of new technologies to the physical system affects the human aspects, so rail managers are concerned with maintaining the integrity across the whole system as it evolves. This paper describes a modelling framework based on the ISO42010 standard which allows for generating consistent models that help with overcoming the challenges raised by interconnectivity of the physical system and organization components. The foundation of the framework is a metamodel (an abstract model of the whole domain) which can be instantiated to various real organizations. The interconnected elements of the metamodel holds the relationships between the model elements which are mapped to the domain elements, so the interconnectivity among the rail system components and the human related requirements can be traced and maintained