1) A database is an organized collection of data that is managed using database management software (DBMS). A DBMS provides interface between users, applications, and the database. 2) The database approach pools related data that can be shared by multiple applications, reducing data redundancy and improving integrity over traditional separate data files for each application. 3) Relational databases like MS Access organize data into tables with rows and columns, allowing data to be linked together through common keys.