Database Design Concepts Nitya Mandal Introduction The overall project deals with characteristics of data source system, its approach and exactly how it substituted the file centered approach. In every organization there exists need of databases. Database is assortment of data in a set up and more systematic way that helps in retrieving the data easily and efficiently. Before repository system came in to picture there was file based strategy in which there have been application programs which were used to execute services for person and produce accounts. However every program used to manage its own data. Due to this and different other limitations record system was substituted by databases system. The modern data source procedure has much edge that helps not only the organization but also the normal people in their day today life.