Structural modelling of maintenance services

Maintenance services are complex systems that require a wide perspective in order to comprehend the real value and achieve the optimal level of service performance. Computer- aided models enhance understanding of the dynamic complexities arising from feedback, time delays and non-linearities. A System Dynamics approach is used to capture the complex structures as well as to explicitly incorporate mental models into policy analysis and design. Due to the difficulties of creating and maintaining extensive models, it is imperative to encapsulate structure into logical entities. In this paper, a hierarchical model comprised of reusable modules is presented.