Abstract: Data modeling is the basic step of any database design, which is a powerful expression of any company business requirements. It is nothing but an act of exploring data oriented structures and the conceptual models in form of diagrams and flow charts on how data items relate to each other. Data modeling tools and techniques capture and translate complex system design into clearly understood representation of data flows and processes. The main focus of data modeler is on data and exploring data issues, therefore they tend to get much more accurate data than object modelers. They often use multiple models to view the same data and ensuring that all processes, entities, relationships and data flows have been processed.