Μηχανισμος Αξιολόγησης Και Επιλογής Υπολογιστικου Νεφους

Abstract

The objective of this study is the design and implementation of an evaluation and selection mechanism for computing clouds. The mechanism was designed as a web service and was implemented in Java programming language with the platform Gria Development Kit. It can be used with Gria Client including a special plug-in which was also implemented for this purpose.The design of this mechanism aims to help user that want to conduct a computing task in a computing cloud, starting from searching and allocating resources till the execution of the task and getting the results. The user sets his QoS preferences regarding the cloud and the mechanism selects the one that best fits his needs, out of a variety of computing clouds that are stored in a local database.The mechanism is hosted on a server as a web service, while the part that regards the client (Gria Client) is used to interact with the user, which is settings the QoS preferences and showing the selection mechanism results.