Models and Challenges Categorization in Cloud Computing

Cloud computing is one of the fastest evolving technologies and is the future in computing for companies looking for technological updation, more productivity and service providers are seeking enhanced revenue. Information technology services and infrastructure are outsourced so to make them remotely accessible through internet. Organizations utilizing cloud-computing services and models have a competitive edge to their counterparts. Different cloud service & deployment models and strategies have been developed in due course of time with the growing demand. This alarming development leads to few challenges as well like security issues, compliance, cost, expertise, performance and managing multiple clouds and its migration. Cloud computing models are discussed and its challenges are bifurcated into two broad categories technical and managerial aspects.