Relational databases are providing storage for several decades now. The term NoSQL broadly covers all non-relational databases that provide scalable and schema-less model. NoSQL databases are used by major organizations operating in the era of Web 2.0. Different categories of NoSQL databases are key-value pair, document, column-oriented and graph databases which enable programmers to visualize the data closer to the format used in their application. In this paper, class diagram has been merged

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... ith OrientDB through Java API to visualize the class diagram as OrientDB graph. OrientDB is the only database which supports both graph and document database, also provides support for both inheritance and polymorphism.