Abstract

“Cloud” is an amalgamation of servers, software and applications that can be accessed by individual or business organizations with an aim of accessing services at pay per usage policy. Customers or tenants get access to some portion of cloud to run their tasks and performs computation. As there are many challenges on cloud while accessing, storing and securing data like trade off in applications, higher costs incurred for low supply of resources and many more. It leads to the need of Multitenancy. Multitenancy is an approach of achieving flexibility, higher degree of scalability, clustering of services and reduced data accessing costs. It requires accessing of database by multiple clients at one go and it is obvious that it may lead to security risks in cloud environment. The paper makes readers aware of concept of Multitenancy and its actual need in today’s computing era. It is followed by identification of security threats associated with multitenant environment in form of literature review. Lastly, a secured multitenant cloud environment using concept of ontology is being proposed in the following paper.

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