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    2009

    • Santamaria Maurizio, C., Marti, P. & Pozzi, S. (2009).

      Critical Interaction Analysis in the Flight Deck. In proceedings of the HCI International 2009, San Diego, USA.

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      The paper describes an experimental work conducted within the HILAS (Human Integration into the Lifecycle of Aviation Systems- http://www.hilas.info/mambo/ ) project. The objective of HILAS is to develop a model of good practices for the Human Factors (HF) integration throughout the life-cycle of aviation systems. The project developed a toolkit of HF tools for the evaluation of new technologies for the flight deck. CRIA (Critical Interaction Analysis) is one of the HF tools included in HILAS toolkit. This paper reports the results of a real time simulation,  held at NLR in Grace Simulator, where CRIA was applied to assess the HF issues implied in the replacement within the flight deck of the current radio panel with an Interseat Touch Screen (ITS), implemented by GE Aviation.

    • Y.D.W. Asnar, M. Felici, F. Massacci, A. Tedeschi, A. Yautsiukhin

      Quantitative Assessment for Organisational Security & Dependability, Second International Conference on Dependability (DEPEND 09), June 18-23, 2009 - Athens, Greece. 

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      There are different metrics to assess security and dependability of technical systems (e.g., length of encryption key, number of defects per thousand lines of code or reliability metrics). A rigorous assessment methodology is necessary in order to determine the current state (e.g., level of security and dependability) of a system.  On the one hand, it would support system monitoring.On the other hand, it would also support decision making processes.  Unfortunately, most metrics result to be too low-level and capture loosely high-level system abstractions, if we consider technical systems and their organisational interactions as a whole. System analysis from an organisational viewpoint enables strategies in order to detect and eliminate possible threats by system re-organisations or reconfigurations, that  is,  by  re-adjusting  organisational  interactions. In other words, it is necessary to assess organisational struc- tures of systems,  not only their system level implementa-tions and architectures.Hence, we have to take into account the socio-technical nature of systems, that is, their organisational models, where the correct behaviour of the system as a whole depends on organisational interactions (e.g., interactions among human beings and technical systems).  This paper focuses on metrics suitable for capturing socio-technical aspects and supporting decision mak-ing processes. It highlights how taking into account socio-technical structures (i.e., organisation design patterns) supports  quantitative  assessment  for  organisational  security and dependability.

    • P. Masci and A. Tedeschi

      Modelling and Evaluation of a Game Theory approach for Airborne Conflict Resolution in Omnet++, The Second International Conference on Dependability (DEPEND 09), June 18-23, 2009 - Athens, Greece. 

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      Airborne self-separation is an air traffic management concept in which pilots are allowed to select the aircraft route in real time. In such environment, pilots are supported by an airborne system that detects possible route conflicts with neighbouring aircraft and gives advice for manoeuvring solutions to avoid conflicts. In this paper, we report on our work towards the evaluation of a game theory approach for conflict resolution, by taking into account more realistic conditions and hypothesis about the communication exchange among aircraft.We employed the well established network simulator Omnet++. Preliminary results point out the insight we gained about system dependability when dealing with the ineherently lossy nature of the wireless environment.

    • M. Felici, V. Di Giacomo, V. Meduri, D. Presenza, C. Riccucci, A. Tedeschi

      Validating Complex Interactions in Air Traffic Management, to appear in the proceedings of the 2nd International Conference on Human System Interaction,University of Catania, Catania, Italy, May 21-23, 2009

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      This  paper  is  concerned  with  the  evaluation and validation  of complex interactions. It reports our validation activities for the design and implementation  of a tool supporting Security and Dependability (S&D) requirements tailored for the Air Traffic Management domain.