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Memorias de investigación
Ponencias en congresos:
Reliability issues related to the usage of Cloud Computing in Critical Infrastructures
Áreas de investigación
  • Ingenierías,
  • Ciencias de la computación y tecnología informática,
  • Interconexión de sistemas,
  • Centro de cálculo,
  • Informatización,
  • Impacto de la informática,
  • Informática industrial
The use of cloud computing is extending to all kind of systems, including the ones that are part of Critical Infrastructures, where measuring the reliability is becoming more difficult. Due to the high utilization of cloud services by all types of organizations, computing is becoming the 5th utility (along with water, electricity, telephony and gas). These technologies are used for almost all types of systems, and the number is increasing, including Critical Infrastructure systems. Even if Critical Infrastructure systems appear not to rely directly on cloud services, there may be hidden inter-dependencies. This is true even for private cloud computing, which seems more secure. The critical systems can began in some cases with a clear and simple design, but evolved as described by Egan to "rafted" networks. Because they are usually controlled by one or a few organizations, even when they are complex systems, their dependencies can be understood. The organization oversees and manages changes. These CI systems have been affected by the introduction of new ICT models like global communications, PCs, the Internet. Even virtualization took more time to be adopted by Critical systems, due to their strategic nature, but once that these technologies have been proven in other areas, at the end they are introduced as well for different reasons like costs. A new technology model is happening now with some previous technologies (virtualization, distributing and utility computing, web and software services) that are offered in new ways and is called cloud computing. The organizations are migrating more services to the cloud, this will have impact in their internal complexity and in the reliability of the systems they are offering to the organization itself and their clients. Not always this added complexity and associated risks to their reliability are seen. As well, when two or more CI systems are interacting, the risks of one can affect to the rest, sharing the risks. We introduce the terms micro-dependability to define this concept. We will define micro-dependability in the context of Computer Systems as the relations of these inside organizations that could affect on the reliance of the services that these deliver. This paper investigates the use of cloud computing by Critical Infrastructure systems and systems of systems. Some examples are presented, and even when the use of cloud computing by such systems is not widely extended, there is a future risk that this paper presents. The concepts of macro and micro dependability we introduce are useful for inter-dependency definition and for analyzing the resilience of systems that depend on other systems
Nombre congreso
ESREL 2011. European Safety and Reliability Association
Tipo de participación
Lugar del congreso
Troyes, Francia
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Título de las actas
Advances in Safety, Reliability and Risk Management - Proceedings of the European Safety and Reliability Conference, ESREL 2011 (ISBN: 9780415683791)
Esta actividad pertenece a memorias de investigación
  • Autor: Oscar Manuel Diez Gonzalez (UPM)
  • Autor: Andres Silva Vazquez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Informática Biomédica (GIB)
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