Data Model is the methodology in which we can formalized and gets documentation of the existing processes and events that occur during application software design and development. It is powerful model which help capture and translate complex system designs into easily understood representations of the data flows and processes, creating a blueprint for construction and/or re-engineering. Data Model is used for to representation of data structures in a table. This Data Model is used by functional and technical analysts in the design and implementation of a database because it very helpful in the analysts and representation and it also used for many purposes likes high-level conceptual models to physical data models.