Implicit properties of database:
–A database represents some aspect of the real world, sometime called mini-world, or the universe of discourse.
–A database is a logically coherent collection of data with some inherent meaning. A random assortment of data cannot correctly be referred to as a database.
– A database is designed, built, and populated with data for a specific purpose. It has an intended group of users and some preconceived application in which these users are interested.