Semantic Web is a common framework to share data across several applications and various enterprises. More specifically it is a term for a data web that can be operated by the machines. Semantic Web Services represents the server side of the client server architecture for interactions between two or more machines through World Wide Web. Semantic Web uses Extensible Markup Languages which represents data in a more sophisticated and detailed way which is understandable by the machines. In recent years Semantic Web Services is being used widely. Meanwhile, several security issues regarding the same have popped up. In addition with the emerging technology cloud computing semantic web security has acquired major importance.Thus various solutions to solve this problemhas also been proposed. This paper presents a comparative study of the various security methods that have come up and benefits and drawback of each method.
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