Trusted Service Selection In Cloud Computing using Topsis

Computer Engineering

Cloud computing is one of the emerging technology. It provides elastic and scalable resources over the internet from remote data center to consumer. Diverse provider and service landscape makes cloud computing marketplace a highly competitive one. But due to dynamic and non-transparent nature of cloud computing, it has given rise to confidentiality, privacy, security issues. The Assurances are insufficient to identify trusted and dependable cloud service. Due to these issues it is very important to select trustworthy service for users their business. Trust is one of most challenging issue in technology of cloud computing. In cloud market place there many services which provide primarily similar functionality. But there is lack of trust element in them which become hinder for user adopting them. Cloud service should provide according to SLA (Service Level Agreement ) but in real there is difference between SLA and service they provide. This paper uses Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) and Ordered Weight Averaging (OWA) algorithm to propose method which help cloud user in selection trusted service selection. OWA calculate weights dynamically for trust parameters. TOPSIS give result not only closet to ideal solution but also the farthest from non- ideal solution. Ideal solution is a solution for which all attribute have the best value. For experiment real cloud data are used. Dataset is derived from cloud armor project.

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