Publication: Selección de proveedores de servicios Cloud basada en métricas de seguridad
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2015-10
Defense date
2015-10-15
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Abstract
Uno de los servicios tecnológicos que está en pleno desarrollo y uso por parte de numerosas industrias es el Cloud. A lo largo del tiempo hemos sido testigos de los múltiples cambios que ha sufrido el sector tecnológico pero pocos avances han sido tan significativos como el desarrollo de este servicio así como la entrada de numerosos proveedores globales que lo ofrecen. Este servicio Cloud permite dar cobertura a gran cantidad de empresas permitiendo el acceso ubicuo y bajo demanda a un conjunto compartido de recursos de computación, lo cual ha supuesto una revolución de la que se benefician tanto consumidores finales como empresas públicas o privadas. La seguridad en este servicio ha sido uno de los principales problemas, pues lo datos del usuario pasan a estar almacenados en servidores ajenos, por todo esto, los aspectos de seguridad cobran una gran importancia ya que estamos subcontratando infraestructura (IaaS), plataforma (Paas) y software (SaaS) a un tercero el cual maneja nuestros datos.
Por otro lado, en la época actual, la exploración de la mayor productividad y eficiencia fomentan la búsqueda de nuevos métodos para afrontar la toma de decisiones en escenarios donde intervienen gran número de criterios o alternativas de selección. Por consiguiente, es necesario utilizar herramientas que permitan discernir entre estos proveedores Cloud para así obtener una solución que satisfaga, en la mejor medida posible, la combinación de las distintos criterios así como el proveedor que más seguridad nos otorgue siendo esta de principal importancia. Dentro de esta búsqueda de nuevas metodologías se encuentran los métodos de decisión multicriterio en los cuales se centra este Trabajo Fin de Grado.
Si unificamos el aumento de la demanda de los servicios Cloud así como del número de proveedores que ofrecen este servicio con los métodos de decisión multricriterio, obtenemos como resultado la búsqueda de la mayor eficiencia posible mediante una selección correcta de un proveedor que se adapte de la mejor forma posible a los criterios seleccionados por el cliente, dentro de estos criterios, los aspectos de seguridad cobran importancia pudiendo seleccionar el proveedor más adecuado conforme al nivel de protección que necesitamos.
Para ello en este Trabajo Fin de Grado se han propuesto dos tipos de metodologías basadas en decisión multricriterio para discernir entre los distintos proveedores de servicios Cloud, estas metodologías son: en primer lugar el Proceso de Análisis Jerárquico (AHP) y, en segundo lugar, la Teoría de Utilidad Multiatributo (MAUT).
One of the technological services that is in full development and use by many industries is Cloud Computing. Over time we have witnessed the many changes that have hit the technology sector but few advances have been as significant as the development of this service as well as the entry of numerous global providers that offer it. Cloud services allow a large number of companies to gain ubiquitous and on demand access to a shared set of computing resources, which has supposed a revolution that benefits both the end consumer and the public or private companies. The security in this service has been one of the main problems, as the user data happen to be stored in outside servers, for all this, the safety aspects are of key importance as outsourcing infrastructure (IaaS), platform (PaaS ) and (SaaS) software to a third party which handles our data. Moreover, at the present time, the exploration of greater productivity and efficiency encourage the search for new methods to cope with decision-making in settings where many selection criteria or alternatives are involved. For all these reasons, it is necessary to use tools to discern between alternatives for obtaining, to the greatest extent possible, the most satisfactory solution as well as the provider that most security grant us is of primary importance. In this search of new methodologies we find the multicriteria decision methods in which this project focuses. If we combine the increased demand for cloud services and the number of providers that offer this service with multicriteria decision methods, we obtain as a result the search for maximum efficiency through proper selection of a provider that best suits the criteria selected by the client. Within these criteria, security aspects have a fundamental importance to select the right provider according to the level of protection that they need. In this Final Project we study two types of methodologies based on multicriteria decision making mechanisms to discern between different cloud service providers, these methodologies are: first, Analytic Hierarchy Process (AHP) and, secondly, Multiattribute Utility Theory (MAUT).
One of the technological services that is in full development and use by many industries is Cloud Computing. Over time we have witnessed the many changes that have hit the technology sector but few advances have been as significant as the development of this service as well as the entry of numerous global providers that offer it. Cloud services allow a large number of companies to gain ubiquitous and on demand access to a shared set of computing resources, which has supposed a revolution that benefits both the end consumer and the public or private companies. The security in this service has been one of the main problems, as the user data happen to be stored in outside servers, for all this, the safety aspects are of key importance as outsourcing infrastructure (IaaS), platform (PaaS ) and (SaaS) software to a third party which handles our data. Moreover, at the present time, the exploration of greater productivity and efficiency encourage the search for new methods to cope with decision-making in settings where many selection criteria or alternatives are involved. For all these reasons, it is necessary to use tools to discern between alternatives for obtaining, to the greatest extent possible, the most satisfactory solution as well as the provider that most security grant us is of primary importance. In this search of new methodologies we find the multicriteria decision methods in which this project focuses. If we combine the increased demand for cloud services and the number of providers that offer this service with multicriteria decision methods, we obtain as a result the search for maximum efficiency through proper selection of a provider that best suits the criteria selected by the client. Within these criteria, security aspects have a fundamental importance to select the right provider according to the level of protection that they need. In this Final Project we study two types of methodologies based on multicriteria decision making mechanisms to discern between different cloud service providers, these methodologies are: first, Analytic Hierarchy Process (AHP) and, secondly, Multiattribute Utility Theory (MAUT).
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Keywords
Servicios Cloud, Protección de datos, Proceso de Análisis Jerárquico (AHP), AHP, Teoría de Utilidad Multiatributo (MAUT), MAUT, Servicios web, Multicriterio