Modelling and analysis of socio-technical system of systems

This paper proposes a novel approach to System of Systems modelling based on the specification of system capabilities. The approach is designed to help end users graphically identify and analyse the hazards and associated risks that can arise in complex socio-technical System of Systems, with particular emphasis on the role of system dependencies. Through a case study this paper shows how the technique can identify the vulnerabilities that may arise within a given System of System configuration; and explore the resilience of a given system when considering evolution and unexpected circumstances

Responsibility modelling for civil emergency planning

This paper presents a new approach to analysing and understanding civil emergency planning based on the notion of responsibility modelling combined with HAZOPS-style analysis of information requirements. Our goal is to represent complex contingency plans so that they can be more readily understood, so that inconsistencies can be highlighted and vulnerabilities discovered. In this paper, we outline the framework for contingency planning in the United Kingdom and introduce the notion of responsibility models as a means of representing the key features of contingency plans. Using a case study of a flooding emergency, we illustrate our approach to responsibility modelling and suggest how it adds value to current textual contingency plans