The technological progress of the last fifty years has reshaped the design and operation of modern engineering systems. Conversely, the methodologies adopted to estimate their safety and reliability are the same developed  to model the systems of over fifty years ago.

While the long success of techniques such as Fault Trees and Event Trees is proof of their efficiency and has made them into a widely understood language shared by analysts, designers and regulators alike, their deficiencies in capturing the realistic behaviour of modern systems is often overlooked due to the lack of valid alternative tools.

This webinar introduces the Dynamic and Dependent Tree Theory (D2T2), a methodology aimed at tackling the obvious limitations of traditional safety analysis techniques, while retaining their advantages. The proposed approach allows to integrate the modelling of dependencies within the traditional FT/ET analysis framework, regardless of the nature or location of such relationships in the system, hence removing any hidden assumption of independence.

The (D2T2) technique is demonstrated through its application to a simple case study, focusing on the emergency cooling system of a nuclear reactor.

To register for the webinar please click hereSaRS webinars are free and open to members and non-members.

The webinar will be presented by Dr Silvia Tolo from the University of Nottingham. Dr Tolo gained an M.Sc. in Energy and Nuclear Engineering from the University of Bologna, and subsequently collaborated with the Institute for Risk and Uncertainty at the University of Liverpool, where she was awarded a Ph.D. She is currently undertaking research within The Resilience Engineering Research Group at the University of Nottingham on the development of theoretical and computational tools for the efficient modelling of complex systems.


Tuesday, 19th March 2024 at 5:30pm


Tuesday, 19th March 2024 at 7:00pm