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Recently, Cloud Computing has become an emerging research topic in response to the shift from productoriented economy to service-oriented economy and the move from focusing on software/system development to addressing business-IT alignment. From IT perspectives, there is a proliferation of methods for cloud application development. Such methods have clearly shown considerable shortcomings to provide an efficient solution to deal with major aspects related to cloud applications. One of these major aspects is the multitenancy of the Software-as-a-Service (SaaS) components used to compose Service-Based Applications (SBAs) on the cloud. Current SaaS offerings are often provided as monolithic one-size-fits-all solutions and give little or no opportunity for further customization. As a result, monolithic SaaS offerings are more likely to show failure in meeting the business requirements of several consumers. In this paper, we analyze the state-ofthe-art of the standardization and methodology support for SBA development on the cloud, identify some shortcomings, and point out the need of a novel approach for breaking down the monolithic stack of cloud service offerings and providing an effective and flexible solution for SBA designers to select, customize, and aggregate cloud service offerings coming from different providers (Nguyen et al., 2011).

SERVICE-BASED APPLICATION DEVELOPMENT ON THE CLOUD - State of the Art and Shortcomings Analysis